The main pests of Cylindrozos punctata are the green-blind cricket, the juvenile cricket mosquito and the jujube turtle wax. Spider mites, Zaojiao, and P. minors also occur occasionally, with minimal damage.
Second, comprehensive prevention and control measures
According to the characteristics of circular bollworm jujube in the county, planting and sporadic planting of the farmland, and planting in small pieces, and the occurrence of major pests in the jujube tree, etc. Integrated prevention and treatment measures focused on pharmaceutical control.
(I) Dormancy prevention
Dormant insect pests have four favorable conditions: 1 more concentrated wintering places, a variety of insects more consistent age. 2 jujube trees are in dormancy, with strong anti-drug ability, and can use high-concentration pesticides. 3 The trees have fallen leaves, save time, save materials, and have good control effect. 4 long dormancy, ample time for prevention and treatment.
1. Strengthen fertilizer and water management, increase tree vigor, and increase resistance to pests and diseases.
2. Reasonable intercropping and neighboring works. Zaoyuan is suitable for intercropping with wheat and peanuts, and is not suitable for intercropping with crops such as cotton, corn and soybeans. Jujube and cotton are the important hosts of A. lucorum, and jujube and cotton are beneficial to the survival and reproduction of A. lucorum.
3. Scrape the bark. Under the bark is a place where many kinds of pests concentrate wintering. The skin is carefully scraped and the scraped bark is burned in order to kill the overwintering pests. After shave the skin, lime, salt and water are used to prepare the lime water in a ratio of 2:1:200. , can play a role in sterilization and cold.
4. Cutworm branches. Combine the winter shears, cut pests and branches, and dead branches, clean the jujube gardens, and burn them together to kill overwintering eggs and overwintering pests.
5. Turn over the tree. Before the soil is frozen, the 1 meter of top soil around the trunk is excavated, and the depth is about 20 cm, so that the overwintering larvae are exposed to the surface and allowed to freeze, die or be destroyed by natural enemies.
6. Manual brushing. Brushing, wood chips, shoe soles, etc. are used to brush out the adult females of waxy jujube.
7. Spray diesel emulsion. Spray the pumped diesel emulsion stock solution with a high-pressure sprayer. After 0.5 hours, beat the branches with bamboo sticks.
8. Floor coating. Under the tree mulching, inhibit adult emergence.
(B) Growth period control
During the growth period, we must pay attention to the protection and use of natural enemies. Natural enemies have predatory spiders, red dot ladybugs, long shield gold wasps and so on.
Chemical control should promote the concept of “green plant protectionâ€. According to the insect report, the group should conduct group prevention and control in a large area, focusing on the characteristics of pests such as Aphids.
1 In the first half of April, when the daily average temperature is stable above 10°C, spray 4.5% beta-cypermethrin 1500 times, or 2.5% kappamile 2000 times, or 10% imidacloprid wettable to the Zaoyuan and nearby crops in time. 3000 times liquid powder, prevention and treatment of the first generation of green nymphs hatch nymphs.
2 In the middle and late April, when the jujube sprouted, it was at the stage of the first generation larvae of the juvenile Mosquito, sprayed with 4.5% beta-cypermethrin 1000-1500 times plus 10% imidacloprid 2000 times, or 48% Rostime 1500 Double liquid to kill the larvae inside the leaf roll. 7 to 10 days spray 1, even spray 2 times, control effectiveness of up to 95%.
3 In early May, the nymphs of the green-clear nymphs were sprayed once again at the peak stage, and they could also be treated as red spiders.
4 In early July, according to the insect forecast, during the peak period of waxing of the juvenile wax larvae, spray 40% culling 2000-3000 times, or 25% dying net 800-1000 times, and also treat red. Spider and peach snack hearts. When the pests are severe, they can be sprayed once every 10 to 12 days, and sprayed twice. The control effect can reach more than 97%.
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