灰胸突鳃金龟子在樱桃园的发生规律及综合防治

为探明灰胸突鳃金龟子幼虫在土壤中全年的垂直移动动态、成虫的出土时期、药剂防治的最佳时期,作者于2019年对其进行研究。结果表明,其幼虫具有明显的垂直移动规律,在81~100 cm土层中越冬;在0~20 cm土层内集中分布区,用毒辛200倍或白僵菌50倍液灌根,防治效果分别达80.0%、42.6%;在其成虫的出土盛期,用药剂防治或者增加杀虫灯的数量,可减少成虫产卵数量。

Occurrence Regularity and Integrated Control of Hoplosternus Incanus Motschulsky in Cherry Orchard

In order to find out the vertical movement of the Hoplosternus Incanus Motschulskylarvae in soil all year round,the excavation time of adults,and the best period of chemical control,the authors conducted a study on it in 2019.The results showed that the larvae had obvious vertical movement and overwintered in 81~100 cm soil layer;In the 0~20 cm soil layer,the area is concentrated,the roots were irrigated with 200 times of toxin or 50 times of Beauveria bassiana,the control effect was 80.0%and 42.6%respectively;in the peak period of adult emergence,the number of eggs laid by adults can be reduced by using insecticides or increasing the number of insecticidal lamps.