The Occurrence and Control of Major Diseases and Pests of Vegetables in July

The high temperature in midsummer and the weather of multiple storms in July are conducive to the occurrence of many kinds of pests. The pest situation is complex and has great harm to the production of vegetables. The main insect pests are: Spodoptera exigua, Spodoptera litura, Trichomonas mellea, Liriomyza spp., Myzus persicae, Flea beetle, Thrips, Aphids; The main diseases are: blight, anthrax, melon wilt, and blight. Cruciferous vegetables, such as damping-off seedlings, blight, white rust, leaf spot disease and other flax. 1, Spodoptera exigua, Spodoptera litura is an omnivorous pest, will cause harm to almost all vegetables, can use 15% Dupont hit suspension agent 3500 times (high efficiency for young, old larvae), or 5% thiocyan EC 1000 times (Some cabbage vegetables may have mild phytotoxicity at the seedling stage), or 20% of a 1,000-fold full-suspension concentrate (indicating Spodoptera exigua) and spray in the evening (The above formula can co-treat the diamondback moth, cabbage caterpillar, tobacco budworm, cotton bollworm) . On the dwarf vegetables such as onion and scallion, it is also possible to use 3% Miller granules 1-2 kg/mu with 10 kg of fine sand and spread evenly (to treat underground pests). 2. The leafminer (commonly known as the pictogramworm) mainly harms beans, melons, celery, cabbage, etc. High-temperature dryness occurs severely in early seasons, and damage is caused by infiltrating into the leaves. This results in the loss of leaves. When spraying a small amount of insects on the field leaves, spraying is preferred. The first choice is 50% of wettable powder of 3500 times of wettable powder, and it is also possible to use spray of 1.8% of insecticide to kill 3000 times of star emulsion. Once every 10-15 days, use 2-3 times. 3, bean wild quail (commonly known as bean aphids) Main damage kidney beans, soybeans. It is possible to use 4.5% Green Pea Cream 2,500 times (or 2.5% Dichloramphenicol 3000 times) plus 5% Ruigentic Suspension 1500 times spray. Pay attention to the petals falling on the ground. 4, jump A (commonly known as earthworms) its larvae feed the roots, adults eat bitter stems and leaves, is cruciferous vegetables in summer and autumn seedlings and one of the important pests, can choose 5% Rui Jin Su 2500 times or 5% 1500 times or 52.25% of PepsiCo EC can be sprayed 1500 times at the base of the root and its surrounding surface; it can also be spread evenly with 3% of ground granules 2-3 kg/mu with 5 kg of fine sand. 5, Gualou mainly damage watermelon, melon, gourd, bitter gourd, melon and other melons (skin damage is relatively light), can choose 5% Rui Jin special suspension 1500 times +5% stuck 1500 times, or 10 % Divides 1500 times the suspension agent + 90% of the insecticidal WP 1000 times and sprays on the young larvae. 6. Thrips and roundworms can be sprayed with 20% Confodine rich solvent 4000 times or 20% must-rich solvent 4000 times or 70% Iressa water dispersible granules 15000 times. 7. The epidemic mainly endangers peppers, alpine sweet peppers, ripening watermelons, wax gourds and other vegetables. Heavy rain makes it easy to catch the disease. The main damage stems (vines) (sickness of the disease as boiling water like, it is easy to identify) caused damage to the upper leaves of dry death; also damage pepper, watermelon, wax gourd and other fruits, so that it lost its commercial value. It is best to cut off the disease before spraying, and use 60% fluoborubicin wettable powder or 58% ledomemi WP or 72.2% Preclosolve 600 times spray (control damping off, downy mildew can also be used The above formula). 8, anthrax damage sweet peppers, peppers, watermelons and strawberry seedlings, etc., in order to spray protection before the onset of the main agent can choose 75% Dakkoning WP 600 times or 80% WP WP 600 times, every 7 days Use 3 times at a time. At the beginning of the disease, 25% torch WP can be used 1500 times or 43% Holocaust 5000 times or 10% WSWP 1500 times (also known as blight). 9. White rust and leaf spot disease are the main diseases in the production of alfalfa, which are serious and endangered. It can cause the yellow leaves of the alfalfa and the yield is greatly reduced and the quality is reduced. At present, the more effective agent is 25% torch WP 1500 times or 12.5% ​​WP wet spray 2500 times spray, once every 15 days or so 2-3 times, spray carefully and thoughtful (Note: Pregnancy with caution ). 10. Bacterial diseases include solanaceous vegetables bacterial wilt, cabbage soft rot, radish black rot, watermelon bacterial brown spot, cucumber keratoses, etc. Before the onset of the disease, spray protection with copper preparations and 45% on behalf of the Sen Ammonium water agent 1500 times the roots have a good preventive effect, the early onset can be used 20% of WP wettable powder 1000 times or 10% of the powder of rake powder with 1200 times spray. In addition, attention should also be paid to the prevention and control of diseases such as downy mildew, cannabis leaf spot, silver-winged tobacco moth, tobacco budworm, and whitefly borer, etc., and pesticides should be strictly applied according to the law in the prevention of pests and diseases. Eat vegetable safety.

Goji Juice & Concentrate Juice

Goji Juice & Concentrate Juice,Goji Plant ,Goji Fruit ,Goji Berry Powder

Dried Fruit,Herbal Extract Co., Ltd. , http://www.nbgoji.com