In the rainy season, suitable temperatures in the field and high humidity are very conducive to the occurrence and prevalence of vegetable pests and diseases.
According to investigations, diseases and pests such as anthracnose, powdery mildew, downy mildew, tomato leaf mold, and diamondback moth are relatively serious. The vegetable farmers all over the country should choose to clear the main pests and diseases of vegetables during the season.
1. Melon anthrax:
In the early stage of onset of spraying, the agent can be used 25% to 100 grams of EC 1000 times, 50% to apply power WP 1500 times, 40% chlorothalonil suspension 600 times, 70% thiophanate-methyl 1000 times.
2, melon powdery mildew:
At the beginning of onset of spraying, choose 50% Tribefos Armillarye Suspension 3000x, or 99% Mineral Oil EC (Lycin) 150x, or 40% Fuxing Emulsion 6000x, or 10% Shigao Water-soluble Granules 1500 times, or 30% Teflon wettable powder 1500 times, or 15% Triadimefon 1500 times liquid, every 7 to 10 days, 2 or 3 times.
3, melon downy mildew:
In the initial stage of disease, it is controlled once every 7-10 days for 3 or 4 times in succession; 80% of Dasong M-45 WP can be used as the agent, or 50% of WP can be used as 2000 times, or 72%. % Ke Lu WP 1000 times, or 70% Run Dry Suspension 800x, or 72.2% Proplohydrate 600x, or 68% Jin Lei Water Dispersible Pellet 600x, or 25% Metalaxyl thermostatic powder 600 times spray control.
4, tomato leaf mold:
The beginning of the onset of spraying protection, focusing on spraying the back of the leaves, 7 to 10 days 1, once every 2 to 3 times. The agent can be selected from 6000 times of 40% Fuxing EC, or 1000 times of 50% fluocin suspension, 600 times of 70% thiophanate-methyl wettable powder, or 500 times of 70% of dried liquid suspension, spraying. Prevention.
5, diamondback moth:
During the peak period of egg incubation, spraying with 5% stuck powder 1500 times solution to prevent and control, in the peak period of larvae, according to the control indicators of each larvae with 1-2 heads, to master the larvae before the 2nd age spray control, every 7 ~ 10 days to prevent 1 time, 2 or 3 times in a row. The agent can be selected from 500 times of Suterine (vegetable-specific), or 500% of 0.3% Azadirachtin, 2000 times of 2.5%, or 1,000 times of 0.6% of Diflubenzuron, or 5% of Rui. Jin special suspension agent 2500 times, or 10% of the suspension agent 2000 times and so on.
6. Liriomyza sativae:
For adult control, selection should be carried out at the beginning of the emergence period from sunny day to dry day, and to 2 pm, when the adult is active. The medicine can be 5% stuck with 2000 times solution of emulsifiable concentrate or 5% with 5% Ruijinte suspension agent. The young larvae are controlled by the second-instar larvae (approximately 0.3 to 0.5 cm in diameter) and sprayed at the beginning of the growth period. The pharmaceuticals can be used with 50% of euphoria WP 2000 times, or 75% of WP 5,000 times. Liquid spray control, 5 to 7 days control 1, continuous control 2 to 3 times.
Pay attention to the reasonable and alternate use of control agents. The last spraying and harvesting should be conducted strictly in accordance with the relevant national safety intervals for pesticides.
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