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小麦在不同生育期都可能感染赤霉病,苗期引起苗腐,中后期引起秆腐和穗腐,以穗腐危害最重,秆腐次之,苗腐最轻。小麦赤霉病以农业防治为基础,播种前要深耕,消灭或深埋植株残体,选用抗病品种。药剂防治主要是在小麦开花期,气温高于15℃,连续3 d有阴雨或大雾时,用25%或50%可湿性粉剂多菌灵150~300 g加水75 kg;40%多菌灵胶悬剂50~100 g,加水60 kg;50%可湿性粉剂托布津500~1 000倍液,或50%灭菌丹200倍溶液喷洒。
Wheat in different growth stages may be infected with scab, seedling caused by seedling rot, caused by stalk rot and ear rot in mid-late, with ear rot the most serious, followed by stalk rot, seedling rot the lightest. Wheat scab develops on the basis of agricultural control. Before planting, it needs deep plowing to eliminate or deeply plant residues and choose resistant varieties. Pharmacy control is mainly in the flowering stage of wheat, the temperature is higher than 15 ℃, 3d continuous rainy or fog, with 25% or 50% WP WP 150 ~ 300 g water 75 kg; 40% carbendazim 50 to 100 g of a suspension of plasticizer, add 60 kg of water, 500 to 1,000 times of a 50% wettable powder thiophanate, or 200 times of a 50% sterilized dandelion.