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重点蝗区虫害将偏重发生预计山东省东营、滨州、潍坊等沿海蝗区大发生,济宁、菏泽、泰安、枣庄、济南等湖区、库区、黄河滩区、山区中等偏重发生,沿海蝗区将出现高密度蝗片,预计全省达到防治指标的发生面积470万亩。由于秋蝗发生期正值高温多雨季节,各种农作物生长茂盛,蝗虫隐蔽性强,加之蝗区以外的散生飞蝗迁移集中,秋蝗面积仍然较大。据全省八个有蝗市9月下旬普查,秋残蝗面积仍然比较大,残蝗密度也较高。虽然去年冬
Key locust insect pests will be prevalent Occurs in coastal locust areas such as Dongying, Binzhou and Weifang in Shandong Province are expected to occur. Moderately heavy occurrences occur in lakes, reservoirs, beaches and mountains in Jining, Heze, Tai’an, Zaozhuang and Jinan, Appear high-density locust pieces, the province is expected to reach the prevention and treatment indicators of the area of 470 hectares. As the autumn locust occurs at a time when the hot and rainy season, all kinds of crops grow flourishingly, locust concealment strong, combined with locust area outside the scattered Locust migratory concentration, locust area is still large. According to the province’s eight locusts in late September census, Qiu residues locust area is still relatively large, Locust density is also higher. Although last winter