1. Aphids are mainly Aphis gossypol Glover belonging to the order Homoptera. The birth cycle is short and the reproduction speed is fast (it cannot breed on some insect-resistant varieties). The optimum temperature for breeding is 18-24°C, and development above 25°C is inhibited. Air humidity higher than 75% is not conducive to the breeding of aphids. Therefore, in autumn and winter cultivation, the damage is heavier from mid-August to early October after planting. The locust has a strong tendency towards yellow and orange, followed by green. Silver gray has a dodge effect. 2. The greenhouse whitefly [Trialeurodesvaporariorum (Westwood)] has many types of whitefly, whitefly, whitefly, and the whitefly is also of many types, and the whitefly can cause poisons to the host and spread a variety of viral diseases. For whitefly control, we must grasp the initial stage of population development. When the density of insect population is still low, we should begin to use drugs to control, or use the greenhouse closed conditions to smoke smoke. Under greenhouse conditions, whitefly can occur for more than 10 generations in 1 year. The distribution of whitefly on top of the tomato is a newly-produced green egg, darkened egg, young nymph, old nymph, and pseudonym. The optimum temperature for the breeding of whitefly is 18-21°C, and 1 month in greenhouse conditions. Aphid and whitefly control common pesticides: (1) Organic phosphorus: 80% dichlorvos EC, 50% phoxim EC, etc.; (2) Pyrethroids: 2.5% deltamethrin EC, 2.5% Kung Fu EC, 10% Eliminating Bacco EC, 20% Benevolence EC, etc.; (3) Other insecticides: 10% imidacloprid WP, ​​25% AKT water dispersible granules, 50% limulus mist dispersible granules, 30% dichlorvos smoke agent, etc.; 3. Liriomyza sativae Blanchard is a diptera of the family Diptera. Adult worms are sucked by the spatula of the ovipositor, and the larvae eat leafy leaves, causing the leaves to turn yellow and dry. The hatching period of the eggs is 2-5 days, and the larval period is 4-7 days. The pupa emerges as adults after 7-14 days. Each generation in summer 2-4 weeks, 6-8 weeks in winter. Commonly used pesticides for the control of Liriomyza sativae: (1) Organic phosphorus: 80% dichlorvos EC and 50% phoxim EC. (2) Others: 10% imidacloprid wettable powder, 4.5% beta-cypermethrin EC, latent glycid (malamis), 1.8% avermectin EC, etc. 4. Polyphag tarsonemuslatus Banks belongs to the family Aphididae. Hi warm and humid environment. One generation can be completed in 4-5 days at 28-32°C and one generation in 7-10 days at 18-20°C. Astragalus membranaceus used to prevent common pesticides: (1) Chrysanthemum esters: 2.5% Kung Fu EC, 20% Schleswig EC; (2) Others: 1.8% avermectin EC, 20% WP, 5% Nissorene EC. 5. Helicthis armigera (Hubner) belongs to Lepidoptera. The tomatoes in greenhouses in winter and spring are vulnerable to damage in the spring, April and April, autumn and winter when tomatoes are not protected from insect nets from August to September. They mainly harm young stems, young shoots, and fruits. The weather is warm and rain is more conducive to The occurrence of cotton bollworms. Bollworm control common pesticides: (1) Organic phosphorus: 50% phoxim EC. (2) Pyrethroids: 5% quick-killer emulsifiable concentrate (cis cypermethrin), 10% cypermethrin emulsifiable concentrate, 2.5% kungfu emulsifiable concentrate. (3) Hormone Pesticides: 5% Suppository Emulsion, 5% Cacodine Dispersible Solution, etc. 6. Henschelachnavigintioctomaculata (Mots-chulsky) is a Coleoptera Coccinellidae. Adults are most active from 10 a.m. to 16 p.m., mostly feeding on the back of a leaf before noon and turning to foliar feeding after 16:00. The optimum conditions for growth and development of various insects were temperature 25-30°C and relative humidity 75%-85%. Twenty-eight star ladybugs commonly used pesticides: (1) Organic phosphorus: 80% dichlorvos EC, 50% phoxim EC; (2) Pyrethrins: 2.5% deltamethrin EC, 10% cypermethrin EC, and 10% highly effective EC50; (3) Compounding agent: 21% of chlorpyrifos EC and 40% of chrysanthemum EC. 7. Earthworms bite off the roots of seedlings in the ground, causing the death of the whole plant. Control methods can be used 50% phoxim EC 1000 times root. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone fresh frozen brama brama Frozen Brama Brama,Fresh Frozen Brama Brama,Fresh Frozen Brama Brama Skinless,Fresh Brama Brama Fish Zhoushan Junwei Aquatic Products Co., Ltd. , https://www.junweiaquatic-intl.com