(I) Apricotoma disease
The disease occurs on shoots, leaves, flowers and fruits. Usually when the new shoots reach 15 cm or more after the flowering, the symptoms appear. The young shoots were delayed in elongation, dark red at the beginning, and turned yellow-green afterwards. They had small yellow-brown protrusions on the upper part of the body, and the diseased stems were easy to dry. The results showed diapause and shrinkage, shedding, or hanging on the branches.
Control methods: When the shoots and leaves show signs of illness, they are promptly cut off and burned in a concentrated manner. Such a continuous 2 or 3 years can be basically controlled.
(b) Almond bee
Before the fruit matures, the larvae damage the apricot fruit, causing it to fall off.
Control methods: (1) Pick up the fruit in a timely manner and bury it deeply; (2) If the apricot fruit is large (May), it is a larval spawning period, spraying 2,500 times of deltamethrin or chloridized chrysanthemum, and the effect is good.
(c) Apricot fruit worms
In April-June, adult insects infested buds and buds, laid eggs after flowering, and damaged the fruits.
Control methods: (1) Artificially capture adult worms at flowering stage; (2) Pick up and drop fruits and destroy them in time; (3) Spray 200 times 50% wettable droplets to kill adult worms.
(iv) Mulberry insects
Every year from late March to late October, the damage is done, and the damaged branches grow weak and even die.
Control methods: (1) spraying 5 degree lime sulfur before germination or drying and sticking with 3 to 5 times of monocrotophos; (2) brushing off wintering female adults in winter or early spring; (3) larval incubation period (June) Spray 0.3 to 0.4 degree lime sulfur.
(five) apricot ball scale insects
One generation took place one year. The nymphs wintered on the rough skin of the branches and began to suck shoot juice in April. In severe cases, pruning died.
Control methods: (1) Brush with hard brush when the body is still soft in early May; (2) Spray 5 degree lime sulfur or diesel oil with 5% oil before germination in early spring; (3) Spray the larvae during hatching 0.3 to 0.5 degree lime sulfur.
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