宝鸡市核桃小吉丁虫危害及防治

Techniques and Measures to Control Agrilus lewisiellus Kere in Baoji

经调查宝鸡市核桃小吉丁虫危害总面积6 081.9hm^2,占全市新品种核桃栽培面积(61 400hm^2)9.9%,不同程度受害面积重度占32.2%,中度占22.3%,轻度占45.6%;陈仓区、千阳县受害面积大、受害严重,岐山县、扶风县、太白县等受害面积较小、受害程度低;可采取剪除、焚烧受害枝条,5月初至6月底,结合"协同钙"叶面肥喷施"功夫"等方法防治。

Agrilus lewisiellus Kere incidence in Baoji reached 6 081.9 hm 2 accounting for 9.9% of the total area of walnut cultivation of new varieties, of which serious harm area accounts for 32.2%, moderate harm area 22.3% and slight harm area 45.6%. Chengcang district has largest area of incidence and severity and Qishan, Fufeng and Taibai have least area of incidence and lease damage. It is better to use ＂Xitonggai＂, a kind of foliage fertilizer and Cyhalothrin for control in May and June.