Guide to vegetable diseases and insect pests! (updated version recommended)

Disease

Commonly used compounds note mancozeb of downy mildew mancozeb, mancozeb, pyrazolyl methrin + enylmorpholine, frost urea cyanide, cyanofrozole at the initial stage of onset; pay attention to medication before and after rain Timely treatment of diseased plants and diseased leaves to destroy Fusarium wilt azoxystrobin, prochloraz, carbendazim, difenoconazole at the initial stage of the disease, spray stem base or root irrigation treatment, diseased plants were directly removed and destroyed. And disinfect the soil (note: too high concentration of difenoconazole and metoprolol is easy to cause drug damage) Botrytis cinerea picrinamide, pyrimidine, allicin, putrescein, iso-carbamide, prochloraz, chloramphenicol in the initial stage of bacterial wilt, thiazolium copper, thiazolyl zinc and chlorobromoisocyanuric acid were treated with root irrigation in the early stage of the disease, and the heavy plants were removed and destroyed directly. And disinfect soil anthrax azoxystrobin, dihydroanthraquinone + difenoconazole and prochloraz at the initial stage of the disease. Pay attention to the initial administration of powdery mildew azoxystrobin, ether carbendazim, chlorothalonil, oxime, fluoropyramide + ethoxyl, difenoconazole and nitrazole before and after rain; pay attention to the initial treatment of blight disease mancozeb, mancozeb, pyrazolyl carbendazim + enylmorpholine, cyanofrozole and frost urea before and after rain; pay attention to the initial irrigation treatment before and after rain Timely treatment of diseased plants and leaves to destroy root-knot nematode disease avermectin, thiazolyl phosphine and carbosulfan; other mixed soil ditches to treat virus disease morpholidine hydrochloride, oligosaccharide chain protein and aminooligosaccharide; mainly to prevent soft rot and black rot copper hydroxide, thiobacillus copper, thiazolyl zinc, mesophytin Or zinc thiazolyl + copper oleate at the initial stage of spray and ground rust with bromocinonitrile, oximate, azoxystrobin and trimethoprim; pay attention to medication before and after rain; diseased plants, diseased leaves and diseased fruits should be treated in time to destroy bacterial angular spot copper hydroxide, oleic acid copper, thiazolyl zinc, thiazolyl zinc, mesophytin; pay attention to medication before and after rain Diseased plants, diseased leaves and diseased fruits are disposed and destroyed in time (note: copper hydroxide is recommended to be used alone! ) initial root irrigation treatment of Sclerotinia sclerotiorum, Pythium, isocarbamide, tebuconazole and pyridinamide, and disinfection of soil blight and quenching disease carbendazim, mancozeb, thiophanate; or carbendazim + chlorothalonil, pyrazolyl + mancozeb at the initial stage of the disease, disinfection of soil root rot can also marry carbendazim and diethynyl.

, fluoridinamide

Root irrigation treatment at the initial stage of the disease, the diseased plants were directly removed and destroyed, and the soil was disinfected.

Insect pest

The commonly used compounds are injected with Lepidoptera pests (Plutella xylostella, Pieris rapae, Spodoptera exigua, Spodoptera litura, Chilo suppressalis, Ostrinia furnacalis, etc.) methamidophos, indenyl, ethyl spinosad, chlorobenzamide, cyanofluorohydrazone, imidacloprid, diflubenzuron and butyl ether urea in low-collar larvae. Butyl ether urea can control advanced instar larvae (note: the safe interval of imidacloprid is 14 days) whitefly (greenhouse whitefly, Bemisia Tabaci) snail ethyl ester, fipronil, buprofezin, thiazide, thiamethamide, imidacloprid must be used at the beginning of the pest. When the dew is not dry in the morning, while spraying cyhalothrin, acetamiprid and pyridaben on the vegetables, we should also pay attention to spraying appropriate amount of medicine into the soil; in the field, new nicotine insecticides such as imidacloprid, acetamiprid, imidacloprid, imidacloprid, thiamethoxin and so on should be hung in the field. Against thrips on flowers, fipronil, spirothyl ethyl ester, ethyl spinosad, avermectin and beta-cyhalothrin should be applied in the morning when they bloom; thrips on leaves should also be sprayed properly in the soil; in the field, avermectin, deltamethrin and beta-cyhalothrin should be used in cooperation with blue melon fruit flies (needle bees) from 8 to 10:00 and from 4 to 7 p.m., and the melon fields in the shade should be strengthened. When aphids (melon aphids, cotton aphids, vegetable aphids, etc.) aphids, imidacloprid and acetamiprid are rarely used when aphids (melon aphids, cotton aphids, vegetable aphids, etc.) are used when aphids (melon aphids, cotton aphids, vegetable aphids, etc.) are used when aphids (melon aphids, cotton aphids, vegetable aphids, etc.), imidacloprid and acetamiprid are rarely used. Acetamiprid and imidacloprid were used in young larvae of spider, pyridaben, ethacarbazol, azopyrazole, biphenylhydrazine and other underground pests (grub, small land tiger, leek maggot, garlic maggot, mole cricket, etc.) high-efficiency cypermethrin, chlorpyrifos, phoxim, carbosulfan and other root irrigation treatments

Agricultural skills of farmers