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鼎点金鋼钻和翠纹金鋼钻是江西棉花蕾、鈴期发生普遏为害严重的两种害虫。一般自6月中旬至8月中旬期間,棉田内以鼎点金鋼钻发生数量最大,翠紋金鋼钻較少;8月下旬以后,鼎点金鋼钻迅速下降,翠紋金鋼钻驟然上升,并占绝对优势。鼎点金鋼钻以蛹越冬,年生5—6代,以第2、3代为害最烈;翠紋金鋼钻的越冬問題尚不明确,年生4—5代,以第3、4代为害最烈。在防治上,春季及时处理冬寒菜、蜀葵等植物上为害的鼎点金鋼钻,压低早春基数;在栽培技术上加强棉田管理,促进棉花早熟;在金鋼钻严重发生期内,及时噴射E-605与25％二二三乳剂或6％r可湿性666与25％二二三乳剂混合液,可以有效地減輕两种金鋼钻的为害。
Ding-point gold diamond drill and Cui gold diamond drill is Jiangxi cotton buds, bell stage Pu deteriorating serious pests. Generally from mid-June to mid-August, the largest number of Ding-point diamond in the cotton field occurred, the less green diamond; less after the end of August, Ding-point diamond rapidly decline, Cui gold diamond suddenly Rise, and take absolute advantage. DingDing golden diamond to pupa overwintering, 5-6 generations of life, to the second and third generations of the most damaging; Cui gold diamond overwintering problem is not clear, the annual 4-5 generations, to the third and fourth generations of harm The most intense. In the prevention and control, timely treatment in spring and winter cold vegetables, hollyhocks and other plants on the harmful DingDing gold diamond drill, low spring base; in cultivation techniques to strengthen cotton field management, promote cotton precocity; in the serious occurrence of diamond drill, timely injection E-605 and 25% 23 two emulsion or 6% r wet 666 and 25% twenty-three emulsion mixture, which can effectively reduce the damage of two kinds of diamond.