Almonds belong to the Hymenoptera family, Hymenoptera, also known as the apricot kernel bee. The larvae are mainly responsible for larvae damage. The larvae erode almonds within the apricot nucleus and cause fruit drop, which seriously affects the yield of fresh apricots and almonds. If your apricots are about to mature, apricot fruits are becoming less and less, and most of them are caused by almond bees.
Almond bee 1 year old, with mature larvae in the apricot nucleus during summer and winter. In April of the following year, phlegm was carried out, and the pupa period was about 10 days. When the apricot trees fell, they began to emerge. After the adult was unearthed, it stayed on the surface for 1-2 hours and began to fly. Generally when the finger of apricot fruit is large, a large number of adults appear, fly to the tree and lay eggs. Before the apricot nucleus is not hardened, spawns between the nucleodermal husk and the almonds. The egg period is more than 10 days. The hatched larvae eat almonds in the nucleus and lick the skin four times. They matured in early June, that is, they passed the summer in the apricot nucleus. Overwintering, the affected fruit begins to fall off or shrinks on the tree. The adult's activity time is generally the most active around noon.
To control this worm, first, after defoliating the apricot tree in the previous year and before this year's tree germinating, pick up the black dried apricots damaged by the almond bees. If the tree does not fall, use a long rod to knock it out and pick it up and burn it together. Or buried deeply; secondly, 7-10 days before the flowering period of the apricot tree, spray 2000-2500 times of deltamethrin or cypermethrin for prevention; third, 7-10 days after the apricot is dropped, 20% can be sprayed. Vitro sweep 1500-2000 times the liquid, to prevent the apricot Yangyang surface of the early emergence of almonds bees spawning follicles; Fourth, 15-20 days after the apricot tree fell, this is the most critical period of the control of almonds and bees, can spray 50% Zinphos-pigment EC 1000-1500 times, spray once a week, a total of two sprays, orchard land and weeds in the open space have to be sprayed.
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