How to control the jujube armyworm?

What harm does jujube armyworm have? How to control the jujube armyworm? Netizens who have experience in preventing and controlling jujube armyworm are also invited to help introduce that jujube armyworm mainly harms the leaves, flowers and fruits of jujube trees, which will seriously affect the yield and quality of jujube, so the farming network has sorted out the harm and control methods of jujube armyworm, which are listed below for netizens' reference. The harm and occurrence time of jujube armyworm: jujube armyworm has a single feeding habit, which is only harmful to jujube and wild sour jujube, and the larvae eat jujube leaves, flowers and fruits. When jujube armyworm is harmful to leaves, it often hangs jujube hanging or leaves and wraps them into balls and small bags, and hides the leaves into notches and holes. Jujube armyworm can bite off flower stalks, eat flower buds, and make flowers black and wither. At the same time, jujube armyworm can also harm jujube fruit, the young fruit is gnawed into potholes, and the damaged fruit is red and shedding or sticking with branches and leaves. The emergence of jujube armyworm begins in late March and the peak period is in the first ten days of April. the adults have strong phototaxis and the eggs are scattered on smooth branchlets and leaves. The first generation larvae hatched in early May (before the Beginning of Summer), mainly jujube buds and tender leaves, emerged in the first and middle days of June (after Grain in Beard), the second generation larvae appeared in late June (around the Summer Solstice), mainly harming flower buds, tender leaves and young fruits, resulting in a large number of young fruit shedding, adults Eclosion in late July, and the third generation larvae hatched in late August, mainly harmful leaves and jujube fruits. In late September, the larvae overwintered by cocooning and pupation. Control methods of jujube armyworm: first, scrape off the old warped bark of jujube trees in winter and spring and burn them centrally in order to eliminate overwintering pupae. Method 2. During the occurrence period of the adult of jujube armyworm, the phototaxis of the adult was used to trap and kill the adult with black light. Method 3. Before the jujube armyworm larvae overwintered after autumn, the overwintering larvae could be pupated and wiped out. Method 4. The first generation larvae were sprayed in mid-May and the second generation larvae were sprayed with 1500 to 2000 times of thiazuron 3 or 2000 times of phoxim in late June. Mainly to eliminate the first generation larvae, which is the key to the control of this insect. Management method of florescence of jujube tree grafting method of jujube tree