In recent years, rice locusts have risen again, causing more serious damage and becoming an important insect pest in rice production. To this end, localities should seize the overwintering stage in the winter and early next spring, fully implement comprehensive agricultural control measures and eliminate overwintering locusts. ?
1, a reasonable arrangement of winter. In late-maturing spring crops such as wheat and rape, due to late maturation, locusts overwintering in rice piles can be successfully feathered and transferred to rice in next year. To this end, to properly arrange the winter crops, the late-maturing spring crops should be arranged as far as possible in the late rice fields where the insects are small. The winter cropping fields should be intensively intensively ploughed or covered with exposed rice piles to reduce overwintering insect sources. ?
2, clean up the field relics. In addition to wintering on rice piles and rice straw, rice stem borers and large borers can also overwinter on corn, sugar cane, white rice, millet, mie ren, sorghum and other crop residues and various grasses. In the winter or early spring free time, coping with fields, trenches, roadside weeds, exposed rice piles, white rice, rice kernels, corn and other crop stubbles, concentrated manure or burn, can effectively reduce the overwintering insect source. ?
3, timely irrigation killing. In early spring, at the beginning of phlegm, the green manure field and no-tillage early rice field will be flooded to inundate the rice paddy for 3 days and nights, which can effectively kill the overwintered pupae in the rice pile, destroy the larvae and pupal emergence sites, and increase the early spring mortality rate of the mites. Can reduce the source of insects. ?
4, timely processing of straw. Straw is the main wintering site for locusts. In order to reduce overwintering insect sources, mushroom sheds and livestock and poultry sheds should not use rice straw as the material of the shed, and should be stacked on the straw in the farmland in the field and be carried out before the early spring phlegm. Burned or used for padding.
1, a reasonable arrangement of winter. In late-maturing spring crops such as wheat and rape, due to late maturation, locusts overwintering in rice piles can be successfully feathered and transferred to rice in next year. To this end, to properly arrange the winter crops, the late-maturing spring crops should be arranged as far as possible in the late rice fields where the insects are small. The winter cropping fields should be intensively intensively ploughed or covered with exposed rice piles to reduce overwintering insect sources. ?
2, clean up the field relics. In addition to wintering on rice piles and rice straw, rice stem borers and large borers can also overwinter on corn, sugar cane, white rice, millet, mie ren, sorghum and other crop residues and various grasses. In the winter or early spring free time, coping with fields, trenches, roadside weeds, exposed rice piles, white rice, rice kernels, corn and other crop stubbles, concentrated manure or burn, can effectively reduce the overwintering insect source. ?
3, timely irrigation killing. In early spring, at the beginning of phlegm, the green manure field and no-tillage early rice field will be flooded to inundate the rice paddy for 3 days and nights, which can effectively kill the overwintered pupae in the rice pile, destroy the larvae and pupal emergence sites, and increase the early spring mortality rate of the mites. Can reduce the source of insects. ?
4, timely processing of straw. Straw is the main wintering site for locusts. In order to reduce overwintering insect sources, mushroom sheds and livestock and poultry sheds should not use rice straw as the material of the shed, and should be stacked on the straw in the farmland in the field and be carried out before the early spring phlegm. Burned or used for padding.
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