Cauliflower and lotus white will inevitably carry insects or eggs during their growth. Some insects may have relatively few pesticides and can be eaten as long as they are cleaned.

If you are a vegetable farmer, please refer to the following methods:

The main pests of cauliflower are Plutella xylostella, Spodoptera litura, Pieris rapae, Pieris rapae, aphid, yellow striped beetle and so on.

In order to reduce pesticide residues and environmental pollution, various prevention and control methods should be adopted:

Physical control-trapping and killing aphids and whiteflies with yellow boards; Black light lures moth adults or insect nets to enter;

Chemical control-Plutella xylostella, Spodoptera litura, Pieris rapae, etc. Spraying 5% fixed-dose breast enhancement 1500-2500 times solution in the egg stage; Larva 10% bifenthrin EC 1000 times solution, 20% mirex EC 2500 times solution;

15% is used to kill fleas;

Aphids and Bemisia tabaci: active year, acetamiprid, aphid death, etc.

Lotus white pests mainly include:

1, Spodoptera brassicae, control methods

① Strengthen forecasting. ② Agricultural control. Spodoptera brassicae overwinters in soil as pupae, so some pupae can be eliminated by autumn or winter ploughing in vegetable fields. Eggs of Spodoptera brassicae are produced in pieces on lai leaves, and the larvae are not scattered before the second instar, which is easy to find and can be removed in time in combination with field management. ③ Trapping and killing adults. Black light or sweet and sour pot can be set for trapping and killing in adult stage, and adult ground tigers can be combined with trapping and killing in spring. ④ Biological control. Trichogramma can be released artificially in the egg stage of the dry cocoon bee, with 6-8 release points of 666.7 square meters, 2000-3000 each time, 2-3 times every 5 days 1 time, which can make the total parasitism rate above 80%. Bacillus thuringiensis preparation can be sprayed in larval stage, and the strain with strong pathogenicity to Noctuidae larvae should be selected and applied before the larvae drill into the bulb. ⑤ Chemical control. Before the larvae burrow into the bulb, 6000 ~ 8000 times of mirex, 6000 times of 40% fenvalerate EC, 4000 times of 2.5% Kung Fu EC, 2.5% Uranus EC or 3000 times of 20% mirex EC can be used. Quick-acting and lasting for more than 10 days.

2. Control methods of Spodoptera litura

① Trap and kill adults. Combined with the control of other vegetable pests, black light or sweet and sour pot (Chihuahu) can be used to trap and kill adults. ② Chemical control. Spot stage is before the third instar, which can be treated by combining field management without spraying drugs all over the field. After the 4th instar, they are active at night, so the application should be carried out around the evening. The medicament can be selected from 6000-8000 times of killing fluid; 5000 times of 2.5% kung fu EC; 2.5% Uranus or 20% methomyl EC 3000 times solution; 40% fenvalerate EC 4000 ~ 6000 times, 20% chrysanthemum hemp EC 2000 times, 10 times,/kloc-0 times a day, 2 ~ 3 times in a row.

3, Spodoptera argentea, control methods When spraying chemicals to control Pieris rapae and Plutella xylostella, this insect can be treated at the same time, and generally no separate control measures are taken.

4. Control methods of Spodoptera exigua

(1) autumn ploughing or winter ploughing. Some overwintering pupae can be eliminated. ② Trapping and killing adults with black light. ③ Weeds should be cleared in March and April in spring, and the first instar larvae on weeds should be eliminated. ④ Artificial egg collection and larval capture. ⑤ Chemical control

5. Prevention and control methods of oil seedling reed

(1) Poison bait trapping. Firstly, 90% trichlorfon crystals are dissolved in hot water at 60 ~ 70℃ to 30 times of liquid (50 g of medicine is mixed with 1.5 liter of hot water), and 30 ~ 50 kg of fried wheat bran, bean cake or cottonseed cake are added to each liter of dissolved liquid, and enough water is added when mixing (1 ~ 1.5 times of bait weight) ② Light traps and kills adults.

6. Oncomelania hupensis can be controlled by 8% mirex granules or 10% polyacetal granules, per square meter1.5g..

Pieris rapae, Pieris rapae, aphids. Control methods: Plutella xylostella, Spodoptera litura, Pieris rapae, etc. Spraying 5% fixed-dose breast enhancement 1500-2500 times solution in the egg stage; Larvae 10% bifenthrin EC 1000 times, 20% mirex EC 2500 times.