Due to the high amount of rain in the previous period and the high temperature, the occurrence of pests and diseases is more serious. In the early stage of harvesting of long melons in the mountains, if pesticides are not treated in time, great losses will be caused. The main diseases of long melons are powdery mildew, blight, anthracnose and viral diseases. The main pests are aphids, melons, and Spodoptera litura. The China Pesticide Network has compiled a compilation of relevant disease information for farmers to learn from:
1. Insect 1 Aphid can be sprayed with 10% imidacloprid 3000 times or 50% anti-Converse WP 5000 times.
2 cucurbits, Spodoptera litura, etc. can be used 2.5 times Kung Fu inulin, 3000 times, 5% taibao 1500 times, 15% hit suspending agent 3500-4000 times, 1% insecticidal 3000 times, 5% Ruijinte suspension 2500-3000 times spray control.
2. Disease 1 Powdery mildew can be controlled by 15% triazolone wettable powder 1000 times solution or 40% myclobutanil 1500-2000 times, 10% high water dispersible granules 1500 times, 40% Fuxing emulsifiable concentrate 4000 times solution. Control every 7 days, even 2 to 3 times, pesticide rotation.
2 Vulgaris can be brushed with high concentration of metalaxyl in the stem and combined with foliar spray. Spray with 25% fungicide metalaxyl WP 750-1000 times, 50% chlorhexidine WP 1000 times, 70% thiophanate-methyl WP 600 times, 75% chlorothalonil WP 600 times Spray control.
3 anthrax can be treated with 80% of the large wettable powder 600-800 times or 50% methyl thiophanate 500 times, and charcoal 600-800 times.
4 pesticide network recommended virus disease using 20% ​​virus A wettable powder 500 times, 2% viral spirit 1000 times, 1.5% plant disease 1000 times prevention, every 7-10 days, even prevent 2-3 times, and pay attention Prevent mites.