自八十年代初开始,金纹细蛾在我国北方苹果产区普遍发生。1997年在河北省发病区调查,苹果树叶受害率为40.7～50％,该虫能造成早期落叶,对当年及来年树势影响很大。现将其形态特征、发生规律的综合防治技术介绍如下: 1 形态特征 1.1 成虫 体长约2.5～3mm左右,体金黄色;头部银白色,头顶端有两丛金色鳞毛;前翅基部有3条银白色纵带,翅端部前后缘各有3条银白色与褐色相间的放射状条纹。 1.2 幼虫 体长4～6mm,体细长、黄色;胸足正常,第4对腹足退化。 2 发生规律 金纹细蛾在北方一年发生5代,以蛹在落叶中越冬。翌年苹果发芽时出现越冬代成虫,4月中旬为羽代盛期,卵多产在嫩叶背面,散产。金纹细蛾幼虫孵化后从卵底直接钻入叶片为害,老熟后在虫斑内 Since the early 1980s, the gold-clad moths have been widespread in apple-growing areas in northern China. In the incidence area of ​​Hebei province in 1997, the damage rate of apple leaves was 40.7 ~ 50%. The insects could cause early deciduous leaves, which had a great impact on the current and future tree vigor. Now the morphological characteristics of the regular comprehensive prevention and control technology introduced as follows: 1 Morphological characteristics 1.1 adult body length of about 2.5 ~ 3mm, body golden yellow; head silver-white, top of the head with two clusters of golden scales hair; Bar with white vertical band, fin edge of the front and rear edges of each of 3 silver white and brown with radial stripes. 1.2 larvae body length 4 ~ 6mm, slender body, yellow; normal chest, feet, the fourth on the gastropathy. 2 occurs regular golden moth occurred in the north for 5 generations a year, with pupa in winter in the leaves. The next year, when the apple emerged overwintering adult, mid-April for feather generation, egg prolific on the back of young leaves, scattered. Diamond moth larvae hatch directly from the bottom of the egg after drilling into the leaves damage, mature in the worm spot