Production areas

Regional sorghum has a wide range of adaptability and strong resistance to adversity, regardless of the plains of the fertile land, or arid hills, barren mountainous areas, can be planted. Shanxi region is one of the main producing areas of sorghum.

The planting of sorghum can be divided into spring and fall crops. Spring sowing about the end of March to mid-April in the lunar calendar, the time should not be too early, because the early sowing of low temperatures, slow growth, easy to wither and die when encountering cold spells, the fall is selected in the lunar calendar between late May and late June sowing, the time should not be too late, so as not to avoid the birth of the mid- to late-career encountered low temperatures, which affects the birth of the delayed maturation period. The cultivation process is roughly as follows:

Land preparation: first spread the compost on the cultivated land, and then plow 12 to 15 centimeters (4 to 5 inches) deep, sufficiently plowed and broken clods of soil, remove weeds, and rake the soil surface,

According to the row spacing of 50 centimeters, digging 4 to 6 centimeters deep planting furrow.

Sowing amount: about 15-20 kilograms of seed per hectare, seed can be purchased from the local township agricultural association.

Seeding method: seeding method is divided into two kinds of spot sowing and strip sowing, generally strip sowing is the main, the seeds are evenly sown in the planting furrow and then covered with soil about 3 centimeters thick.

Fertilizing method:

(1)Spring and autumn crops: compost is spread on the field before land preparation, and then turned into the soil, the whole amount of phosphorus fertilizer and half of nitrogen and potassium fertilizers are used as basal fertilizers, which are applied before planting, and the remaining half of nitrogen and potassium fertilizers are applied 30 days after planting.

(2)Lodging cultivation: half of the fertilizer is applied 10 days after the harvest of the main crop, and the remaining half is applied 30 days after the harvest of the main crop. Fertilizer application position should be 10~15 centimeters away from the plant to avoid injury to the plant. (1) inter-seedling replanting: sorghum 20 ~ 25 days after sowing, seedling height of 15 centimeters, the implementation of the first inter-seedling, to the seedling height of 25 ~ 30 centimeters, the implementation of the second inter-seedling, and finally the spacing between the plants to maintain about 10 centimeters, such as the discovery of the lack of planting, can be dug up inter-seedling in the strong seedling to pull out of the replanting.

(2) Plowing and weeding: During the reproductive period of sorghum, according to the occurrence of weeds, the implementation of plowing and weeding 2~3 times, especially in the early reproductive period, pay special attention to weed removal, so as not to affect the development. If herbicides are used, they should be sprayed before sprouting after seeding and mulching.

(3) Cultivate the soil: After the first plowing and weeding, apply fertilizer next to the plant, and congest the soil on the stem of the plant to prevent collapse and promote the development of the plant.

(4) Irrigation and drainage: Sorghum is drought-resistant, but drought during the spike formation period (about 35 days after planting), (about 60 days after planting), and the milk ripening period (about 75 days after planting) can have a big impact on yield, so it should be irrigated in moderation. In the rainy season, the water should be removed at any time to avoid the occurrence of pests and diseases and prolong the ripening period.

Lodging (regeneration) cultivation

(1) Cutting stems: when harvesting in spring, immediately cut the stems at 1~2 centimeters from the ground, and cut the stems as early as possible.

(2) Fertilizer: The amount and type of fertilizer to be applied and the period of fertilizer application will be as mentioned above.

(3)Sprouting: after cutting the stem, the number of sprouts per plant can reach 2 to 5, but each plant to stay in the principle of two healthy buds, the rest of the buds should be removed early to avoid absorbing nutrients.

(4) other management: such as mid-tillage weeding, harvest modulation and other operations are the same as the general cultivation of sorghum. Chemical weeding of sorghum field

Chemical weeding of sorghum field has the advantages of timely weeding, good effect, light labor intensity, high efficiency and low cost. The promotion and application of chemical weed control can achieve high economic and social benefits. Chemical weed control in sorghum field is mainly in the sowing to pre-emergence, and after the emergence of 5 to 8 leaves two periods, the specific use of methods and agents are divided into the following:

(a) after sowing pre-sowling soil treatment

After sowing to pre-sowing chemical weed control is the use of time-difference selection method weed control method, it is in the sorghum seed sowing, the young plants did not come out of the soil before spraying herbicides, and the weeds sprouted early, the will die quickly after encountering the drug, to achieve the purpose of weed control. Sorghum field commonly used, to the seedling after sowing before chemical weed control methods are:

(1) 25% green Cameron wettable powder, per 667 square meters with 200 grams to 300 grams, 50kg of water, evenly sprayed on the soil surface.

(2) 25% Chlormequat chloride wettable powder, per 667 square meters with 150 grams, plus 50% kill grass Dan emulsifier 150mL, or add 60% butachlor emulsifier 50mL, to water 45kg ~ 50kg, spraying the soil surface.

(3) 80% of the grass ether (also known as thatching poison, methylcarboxylic herbicide) wettable powder, 75 grams per 667 square meters to 120 grams of water 35kg to 40kg, spraying the soil surface. In case of drought, you can shallow rake 2cm ~ 3cm, so that the liquid and soil mixing, increase with weeds, young grass contact opportunities, improve the effect of weed control.

(4) 72% isopropyl metolachlor emulsifier, per 667 square meters with 100mL ~ 150mL, about 35kg of water, spraying the soil surface; or 72% isopropyl metolachlor emulsifier 75mL, plus 40% atrazine gel suspensions 100mL, 35kg of water spraying the soil surface.

(5) 50% linuron wettable powder 150g ~ 200g, to 40kg of water, evenly spray the soil surface.

(6)50% Pemetrol wettable powder 200g～300g, to 40kg of water, evenly spray the soil surface.

(7)48% Paclobutrazol water, per 667 square meters with 25mL ~ 40mL, to 35kg of water, or Paclobutrazol 20mL ~ 30mL plus 40% Atrazine Gel Suspension 150mL ~ 200mL, or add 48% Alachlor (also known as Lasso) emulsifiable concentrate 200mL ~ 300mL, to 35kg of water, spray the surface of the soil.

(8)40% Cimazin Gel Suspension 200mL～300mL, to 40kg of water, evenly spray the soil surface. Note that this drug is effective for a long time, after the crop should not be arranged wheat, rapeseed, soybean and other crops, after the crop according to the arrangement of corn, sugarcane, you can increase the amount of drug to 500mL.

(B) seedling stem and leaf treatment

seedling chemical weed control is the use of herbicide in the crop and weed metabolism in the body of the different biochemical processes to achieve the purpose of the grass to protect the seedling. Sorghum seedling 5 to 8 leaf period, resistance is strong, the use of chemical herbicides safer, and 5 leaves before, 8 leaves after the herbicide is very sensitive, so the seedling chemical weed control is generally carried out in the 5 to 8 leaf period, otherwise it is easy to produce drug damage. Sorghum chemical weed control more in the seedling after sowing before the soil treatment, generally should not seedling spray herbicide

agent. If the seedling is indeed due to serious grass, should strictly control the spraying time, concentration and varieties. Commonly used seedling chemical weed control methods are:

(1) 72% 2,4-D butyl ester emulsion, 40mL ~ 65mL per 667 square meters, about 35kg of water, in the sorghum seedling 4 ~ 5 leaf period, uniform spray weed stems and leaves, the main prevention and elimination of broadleaf weeds and sedge family weeds, the grass weeds are ineffective;

(2) 40% atrazine gel suspension, per 667 square meters with 200mL ~ 250mL, water 35kg, in the sorghum 4 ~ 5 leaf period, uniform spray weed stems and leaves. It can prevent and eliminate mono- and dicotyledonous weeds as well as deep-rooted weeds;

(3) 20% dimethyltetrachlorine aqueous solution, 100mL per 667 square meters and 48% baclofen aqueous solution of 12.5mL mixed with 35kg of water, in the sorghum seedling 4 to 5 leaf period, evenly spray weed stems and leaves.

Sorghum is very sensitive to chemicals, the use of which must strictly control the use of varieties, time, concentration and method, otherwise, it is easy to cause drug damage. If it is the first time to use chemical herbicides, lack of experience, must first do a small area of weed control test, summarize the experience and then promote, so as not to cause irreparable yield losses. Seedling blight

Mainly occurs in the sorghum seedling stage, to the field waterlogged more, too much humidity in the field, especially in the sorghum transplanted in the event of sustained rainfall onset is more serious. The symptoms are sorghum growth to 4-5 leaves can be onset. The disease begins in the lower leaves and spreads upward. The infected leaves develop purple-red spots, which gradually unite, causing the leaves to die gradually from the top and the seeds to turn brown.

The disease is caused by Fusarium tandemum, a subphylum of Hemiptera. The pathogen overwinters on the diseased tissue or diseased remains left in the soil with mycelium and thick-walled spores. In the following year, it produces conidia, spreads by rain splashing, and invades from plant wounds to cause disease. Early spring and early summer rainy, warm days and cool nights are favorable for the onset of the weather. Planting low-lying water, field depression and high humidity, or the application of insufficiently ripe soil fertilizer, will aggravate the disease.

Prevention methods: (1) the implementation of more than three years of crop rotation; (2) reasonable dense planting, the use of high ridges or raised beds cultivation; (3) seedling transplanting as little as possible to hurt the seedlings, to avoid wounds to allow the invasion of pathogens; (4) the application of fully rotted organic fertilizers, drainage in a timely manner after the rains, and prohibit flood irrigation; (5) the seedbed with the Wei Bao or three Bao Qifa Puhua prevented once and then transplanted.

Anthrax

Sorghum important fungal disease, in the seedling to adult can occur. The seedling stage of the onset of the disease victimizes the leaves and leaf sheaths, resulting in leaf blight, causing the death of seedlings; in the middle and late stages of the damage to the base of the stem and the spike, resulting in stem rot and spike rot. Leaf blade and leaf sheath symptoms are the most obvious. Diseased plants from the lower leaves first, gradually to the upper leaf development, resulting in leaf withering layer by layer. Diseased leaves mostly start to develop from the end of the leaf blade, expanding to the base of the leaf blade. Leaf spots are small, nearly round or oval, 2 to 4 mm long, 1 to 2 mm wide, dark brown or yellow-brown in the center, purplish-red, yellow-brown or brown at the edge, with black bristle-like dots. In severe cases, most of the spots converge, resulting in the death of a large part of the leaf blade brown. Leaf sheath spots are large, elliptic to elongated, red, purple or black-brown, also with black hairy dots. Stem rot occurs in the near maturity, the stem base internodes at first water-soaked discoloration, and then formed in the middle of the reddish-brown, purple-red edge of the spot, the heavy stem base cracking, stem internal discoloration and rot. The pathogen can also infect the neck of the spike, spikelet peduncle and seeds, so that the rot and discoloration.

The disease is caused by the graminaceous anthracnose fungus of the subphylum Hemiptera. In addition to infesting sorghum, the pathogen can also parasitize a variety of graminaceous plants such as wheat, oats, and corn, causing anthracnose. The disease to mycelium or conidia in the disease residue or seed overwintering inside and outside, become the next year the source of early infection, field onset, the conidia produced on the spot, by wind and rain or airflow transmission, for a number of reinfestation, and constantly spreading and expanding or causing epidemics. Rainy years or low-lying high humidity fields commonly occur, high temperature, high humidity, rain favorable to the onset.

Prevention methods: (1) timely post-harvest treatment of disease residues, composting and fermentation, high temperature sterilization; (2) deep turning of the land, the residual residues in the soil into the soil depths, reducing the source of primary infection; (3) the implementation of more than three years of crop rotation, the application of fully rotted organic fertilizers; (4) timely fertilizers to ensure that the late period of non-deferment of fertilizer to enhance the resistance to disease. (5) timely removal of old diseased leaves at the base of the plant; (6) strict seed treatment, prevention and control of seed-borne anthracnose in the seedling stage; (7) epidemic years or individual heavily diseased plots, from the pregnancy of the spike to apply drugs, the agent can be used in the Weibao or Sanbao Qihua.

Sorghum purple spot disease

Occurring in the middle and late stages of sorghum's growth, it mainly affects leaves and leaf sheaths. The lower leaves first, gradually upward expansion, serious sorghum leaves from the bottom up in advance of the death. Leaf spot purple-red, oval or oblong, edge is not obvious, more limited to the parallel leaf veins, sometimes showing a lavender halo, humidity when the spot on the back of the gray mold layer; leaf sheath spot is larger, oval purple-red, the edge is not obvious, and seldom produces a mold layer.　　The disease is a semi-native subphylum caudate spore fungi caused by airborne repetitive infestation disease. The fungus to mycelium or conidia in the diseased plant residues overwintering, become the next year's primary source of infection. After the onset of the disease in the field, the conidia produced spread by airflow, repeated infestation, so that the disease continues to spread,. The development of the disease has a close relationship with the climate, generally high temperature and rainy years heavy incidence.

Prevention methods: (1) timely deep turning of the land after the fall, the disease residue buried deep in the soil; (2) sorghum growth late timely fertilizer, enhance plant resistance. (3) As early as possible to hit the lower part of the diseased plant 1-2 pieces of old leaves, enhance ventilation and light, reduce the infection of the disease. (4) In the early stage of the disease with the use of drugs to prevent and control.

Red Stripe Virus Disease

Viral disease, the entire reproductive period can occur, to the seedling onset of the plant is the most seriously affected. At the beginning of the onset of the heart of the leaf base between the veins of the green stripes, intermittently connected to the line, and then expanded to the entire leaf, producing light green, yellow stripes. Sometimes the stripes turn red, appearing purple-red pike-like necrotic spots, the expansion of spots by the thick leaf veins to limit. In severe cases, the whole leaf is purple-red and dry. Disease plant dwarf, seedling onset of the disease plant height is 1/3 to 1/2 of the healthy plants, can not spike, early death; nodulation to the spike infested plant height of the healthy plants 1/2 to 4/5, the number of spikes, the length of the spike, the number of spikes and the weight of the grains have been reduced; spikes infested after the plant height is basically normal.

The virus is transmitted by aphids, sap rubbing and virulent seeds, but the aphid non-persistent mode of transmission is dominant. Prevention and treatment of aphids mainly in pharmaceuticals, timely sowing, increase the application of organic fertilizers, timely plowing and weeding, cultivate the soil to maintain moisture.

Black Spike Disease

There are five kinds of sorghum black spike disease: Silk Spike Disease, Scattered Spike Disease, Firm Spike Disease, Flowering Spike Disease, and Long Grain Spike Disease, all of which are harmful to the spike.

Silk Spike Disease is mainly soil-borne bacterial infiltration, is a young shoot infiltration, infiltration once a year. The period of infiltration is from the white tip stage to the young shoots during the 2cm period. After the onset of the whole spike into galls, do not bear fruit. The diseased plant is obviously shorter than the healthy plant at 5 to 6 leaves, and the leaf color is thick green. The flag leaf is straight during pregnancy, and the white stick-like material is visible when the bracts are peeled off, which is commonly known as "umi". Umi is initially small, finger-like, gradually expanding into a cylindrical, harder, the internal tissue from white to black. Subsequently, Umi from the bracts in the outreach, the surface has a white film. The film ruptures and scatters black powdery material, leaving bunches of black filaments. Scattered black spikes disease plant is also shorter than the healthy plants, the diseased spikes of grains destroyed by the pathogen, into a small oval or cylindrical "gray bag". The small gray bag is slightly larger than the healthy grains, and is covered with a dark gray film. The film is easy to rupture, dispersing black powder. Generally the whole spike onset, but still maintain the original spike shape, individual spikes only part of the grains are damaged, the rest of the grains as usual fruiting. Firm black spikes disease plants and healthy plants are no different, after the spike, the diseased spike grain becomes gray-white, exposed outside the glume shell, the spike shape is unchanged. The gray package is cylindrical, containing black powdery winter spores, covered with gray-white film. The film is hard, not easy to rupture. When ruptured, only the top of the small openings. Spike blossom disease only part of the spikelet disease, the rest of the healthy. The affected spikelets are mostly located in the lower part of the spike, near the leaf sheath of the flag leaf. The affected ovary is white, mostly enlarged from one side, and forms raised blisters (galls). Gall outer membrane gray-white, irregular cracking, exposing black powdery winter spores. Long-grain black spikes disease only part of the spikelet disease. The ovary of the infected spikelet turns into a slightly curved, long-horned gall, protruding beyond the guardian glume, with a grayish-white outer membrane. The tip of the gall ruptures, dispersing black powdery winter spore balls. After the black powder scattered, there is no center column, only 8 to 10 black filaments remain, that is, the residual vascular tissue.

Prevention methods: (1) crop rotation with non-host plants; (2) straw compost, high-temperature fermentation, fully rotted, to prevent fertilizer with bacteria. Deep tilling stubble, eliminate disease residues. (3) Use well-rotted organic fertilizer. (4) in the "umi" after the emergence but not yet ruptured before the timely removal of diseased plants, centralized deep burial or destruction. (5) Seed treatment, soak the seeds in 45-55 ℃ warm water for 5 minutes and then smother the seeds, to be just sprouted when sowing. (6) Improve the quality of sowing, shorten the time of young shoots out of the soil, reduce the time of disease infiltration.

Physiological diseases

Caused by a lack of nutrients in sorghum, the symptoms vary depending on the missing element.

1, nitrogen deficiency: slow growth, weak stalks, narrowing leaves, yellowing leaf color, fewer and thinner roots, delayed fertility, spikes of millet poor yield. Early nitrogen deficiency is not easy to detect, only when the seedlings are light yellow, can be found. Symptoms are obvious when sorghum grows to knee-high, characterized by thin plants and yellowish-green leaves. The lower old leaves start to turn yellow from the tip of the leaf, then stretch along the leaf veins, the edge of the leaf is still green, and finally the whole leaf turns yellow and dries up, causing early plant failure. The remedy is to apply rotted dung water or extra-radical application of marsh liquid in a timely manner;

2. Phosphorus deficiency: leaves become narrow, dark green, the number of flowers decreases, flowering and fruiting is delayed, the root system is not well developed, the roots are less and shorter, the growth of the plant slows down, resulting in greed and late ripening. The solution is to increase the application of well-rotted farmyard fertilizer.

3, lack of potassium: the center of the leaf dark green, leaf tip, leaf margins appear part of the yellowing or necrosis, yellowing and necrosis between the part and the healthy part of the obvious boundaries, leaf folds bent. Prevention and control methods: increase the application of farmyard manure.

4, lack of trace elements: manganese deficiency plant growth is slow, there is a clear green loss, reddish-brown pigmented bands between the leaf veins; sulfur deficiency between the leaf veins become yellow, red stem base in late fall, more along the edge of the leaf and gradually expand to the whole leaf; lack of iron inferior leaves become brown, stalks, leaf sheaths become reddish-purple, the new growth of the young leaves appeared lack of green syndrome. Underground pests

Mainly bite the seedling leaves and young stems, resulting in a lack of nests and broken rows. Commonly, there are several kinds of tigers, mayflies, grubs, crickets, all occurring in the seedling stage. The tigers are commonly known as earthworms, with larvae; mole crickets are commonly known as earth dogs, adults and larvae can be harmful; grubs are the larvae of the golden tortoise; crickets are known as crickets, caddisflies, adults and larvae are harmful. Prevention and control of root irrigation and poison bait baiting is the main, the time to use the drug in the morning and evening (after six o'clock in the afternoon) is preferable, the agent can only choose to use the Qingyuanbao, Sanbao Qihua, green crystal biological preparation, Bt preparation, Bacillus thuringiensis, green worm fungus, Bacillus sphaericus, white fungi, fish vines, neem, tobacco lime water, and so on.

Stickleback

Also known as Corn Night Bug, Shaving Branch Bug, commonly known as Colorful Bug, Wheat Silkworm, Marching Bug, etc.. Lepidoptera leaf-feeding pests, to larvae damage, mainly occurring in May-June sorghum seedlings, large occurrence can be sorghum leaves stem all eaten up, causing serious losses. Because of its swarming, migratory, omnivorous and omnivorous characteristics, it has become a nationally significant agricultural pest.

The mature larvae have a body length of 38mm. the head is reddish-brown with brown coarse longitudinal stripes on both sides in the shape of eight. Body color from light green to black, due to different food and environment and change a lot; large occurrence of the back is often black, the ventral surface light stain color. The first hatch larvae have grouping, the first instar larvae can only nibble on the leaf flesh, so that the leaves show white spots 1, 2 instar larvae are mostly at the base of the plant leaf backlighting at the damage, 3 instars after the food quantity increases, can eat the leaves into the lack of carvings, the beginning of the pseudo-death, startled by the rapid curling up to fall to the ground. Larvae are afraid of light, sunny day lurking in the soil cracks at the inter-root, evening or cloudy days climbed to the plant for damage, when the larvae occur in large quantities and the lack of food, often migrate to the nearby plots in groups to continue to infestation; 5-6 larvae enter the stage of bulimia, eat all the leaves or the head of the spike to bite off, and its food accounted for the entire larval period of 90% or so; after the 6th age of the pupa into the ground one after the other. The development of larvae feeding on graminaceous plants is fast, and the plumaged adults lay high amounts of eggs.

Adults are diurnal, starting their activities in the evening, foraging at dusk, crossing their tails and laying eggs in the middle of the night, and searching for hiding places at dawn. Strong tendency to sugar and vinegar liquid, egg laying has a tendency to wither. Adults need to feed on nectar to supplement the nutrients, nectar rich, high egg production; adults like to spawn in dense fields, the production of good growth of wheat, corn, rice fields, dense growth of densely planted fields and fertilizer, irrigation and good fields, conducive to the occurrence of the insect.

Methods of control: (1) trapping adult insects. Utilizing the adult insect to lay eggs on the leaves of cereal crops, inserting cereal grass handles or straw handles in the field, 20-100 per mu, replacing the new grass handles every 5 days, and concentrating the replaced grass handles to be burned. (2) Use sugar and vinegar pots, black light lamps and other traps to kill adult insects and depress the insect population. (2) According to the prediction forecast, master in the larvae before the 3rd age of timely application of drug control.

Mangrove fly

Diptera fly family drilling pests, commonly known as sorghum culm fly, culm fly, mainly to larvae in the plant body overwintering, but also to larvae or pupae in the late reproductive stage of sorghum tiller seedling and the soil overwintering phenomenon, 7 generations per year. The larvae damage sorghum, the first hatch larvae more than 7 o'clock from the trumpet or leaf slit invasion of the heart leaf, and then by the heart leaf gap drilled into the growing point near the feeding, resulting in withered heart seedling or spike deformity, commonly known as "cut heart". The larvae invaded 1 day after the appearance of withered heart, serious withered heart rate as high as 60% to 70%, or even harvest. Adults have the habit of feeding on aphid honeydew and putrid animals. Eggs are mostly scattered in the innermost 3 heart leaves on the back of the main veins on both sides or the tip of the leaf edge, 1 per plant, 24-34 eggs per insect. Most occur in mid to late May and early June sorghum seedlings.

Prevention methods: (1) timely sowing; (2) timely pulling out the withered heart seedlings; (3) poisonous bait to trap adult insects; (4) poisonous soil spotting or liquid irrigation heart.

Aphids

Commonly known as "aphids", putty bugs, honey bugs, oil sweat, as the main pests of sorghum. Generally occurs in sorghum seedling and tassel lifting grouting period. Overwintering with eggs, late May to early June of the following year to produce winged viviparous female aphids migrate to the sorghum in place to infest, the beginning of the point of sheet occurrence, more adult, if the aphid cluster in the lower sorghum leaves on the back of sucking sap, so that the victim leaf red, the heavy leaf withered. After gradually spread to the upper leaves until the spike, and produce winged aphids spread to the whole field. The insect secretes a lot of honeydew when it infests, dripping on the stem and leaves, shiny and glowing, and invites mold parasitism, the victimized heavy leaf withering, stem soft and bent, and even can't draw spikes. If the spikes and flowers to the grouting period of high temperatures, for many days of high temperature and drought, less rain, the aphid will be a big occurrence.

Prevention methods: (1) interplanting with soybeans according to 6:2 to improve the ecological conditions of the field; (2) yellow board sticky to kill; (3) early in the occurrence of drug spray control.

Sorghum Stripe Borer

Commonly known as the sorghum borer, Lepidoptera borer pests, mostly occurring in the middle and late stages of sorghum growth. The insect overwinters in the corn and sorghum stalks with mature larvae, and occurs in 2-4 generations each year. Adults are diurnal, with phototropic but not strong, the first hatch larvae are often grouped in the heart of the leaf nibbling leaf flesh, the damaged leaves can be seen in the net-like small spots and many irregular holes, after the age of 3 began to moth stem damage, moth early can be bitten off the growth point caused by the heart of the seedling, the late stem is easy to cause the wind folded withered.

The prevention and control of sorghum before and after flowering and early grouting two drugs is appropriate.

Prevention drugs: 1, disease prevention drugs can be used: CuSO4, Cu (OH) 2, stone sulfur compound, turpentine compound, Weibao, Sanbao Qifahua, lime, etc.; 2, pest control drugs can be used: Qingyuanbao, Sanbao Qifahua, green crystal biological preparation, Bt preparation, Bacillus thuringiensis, Bacillus sphaericus, white stiffness, cyanobacteria, such as bio-pesticides and neem, fish vines, walnuts, tobacco and other botanical pesticides. .