Seed collection and treatment

1, seed collection: the fragrant leaf tree blooms in April-May every year. Seeds mature in October-November, the outer seed coat is bright red when ripe. Seed collection, select the growth of healthy, straight trunk, crown developed, no pests and diseases of the tree as the mother tree seed collection.

2, seed treatment: the seeds will be picked up in the shade after composting 2-3 days, into a woven bag, repeatedly squeezed and rubbed, rinsed with water. Seed rate of 25%, fresh seeds weighing about 87.7 grams per thousand grains. Then put the seeds in 0.5% potassium permanganate solution to disinfect for 4-5 minutes, filtered out and washed with water, dry and spare.

Sowing sand

1, as a sand bed: choose a bright, dry, ventilated, breathable, rodent-free indoor (balcony), first in the ground on the fresh, clean, fine and medium river sand, made into a bed of sand about 12 cm high, and then disinfected with 0.5% potassium permanganate solution and watered with water for several times.

2, sowing sand: drying the seeds evenly spread on the sand bed, requiring the seeds to be densely spread and not overlap, and then covered with fresh moist medium fine sand, thickness of about 3 cm, can extend the time of the sprouts to grow in the sand, delaying the top buds expanding and turning green, so as to increase the height of the sprouts, and is conducive to cutting the roots for transplanting.

3, sand bed management: maintain the humidity of the sand bed, often ventilated, bed dry with water moderately watering, so that the bed is not white, the bottom of the bed is not waterlogged. late February temperatures rise, the seed germination, at this time should be increased moderately watering times.

Extended information:

Pest control

The current year's seedlings do not occur insect pests, but the buds transplanted at the beginning of the susceptibility to root rot, prone to blight during the rainy season, can be used to 800 times diclofenac solution spray control.

Control of pests and diseases can be started after the seedlings come out of the flush, can be used 800 times of permethrin and 500 times of quintozene (30%) and trichlorfon (70%) mixture of spray control of stem blight, leaf roller moth. For the prevention of tigress, use 1kg of furadan per 667m2 and mix it with 12kg of fine sand to evenly spread the seedbed. When there are weevil pests, use 90% trichlorfon crystals 50g dissolved in 250g of water and sprayed onto 1000g of wheat bran, mixed into poisonous bait, and then sprinkled on the seedbed in the evening to prevent and control the effect is good. Gryllolaptaptor can be used in early October to trap adult insects with a black light.

Precautions

Be careful when starting buds, never touch off the cotyledons, otherwise it will greatly affect the survival rate of transplanting. Fragrant leaf tree grows vigorously, easy to draw late autumn tips, autumn should control water and fertilizer, otherwise vulnerable to frost damage.