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橄榄皮细蛾(Spulerina sp.)在福州1a发生4代,平均各代历期:第1代45d,第2代31d,第3代46.5d,越冬代近8个月.以预蛹期幼虫在橄榄秋梢嫩茎和复叶叶轴的基部至中部上吐丝结茧越冬.越冬代成虫于5月初羽化.第1代幼虫为害春梢;第2代主要为害果实;第3代为害夏梢;第4代(越冬代)为害秋梢.其中以第2代幼虫潜食橄榄幼果所造成的经济危害最大.此虫在果上发育1个世代,其各虫态历期平均为:卵期7d,幼虫期19.5d,蛹期3.5d,雌蛾产卵前期1d.5月中旬至下旬为橄榄座果期和春梢生长期,是防治橄榄皮细蛾保果的关键时期.用特制杀虫粉炮(中国专利号90204382·X)每株大树放炮1粒,3d后重复1次,保果效果达95.22％.
Four generations of Spulerina sp. Occurred in Fuzhou 1a, with average generation duration of 45 days in the first generation, 31 days in the second generation, 46.5 days in the third generation, and nearly 8 months in the winter, In the olive autumn shoots stems and leaves of the central leaf to the central to the middle of the silkworm cocoon wintering. Overwintering generation of adults in early May emergence. The first generation larvae damage spring shoots; the second generation of the main fruit damage; the third generation Harmful summer The fourth generation (overwintering generation) is the damage shoots, among which, the second generation larvae have the greatest economic harm caused by the young olives of the latent dietary olives. The insects develop one generation on the fruit, Egg stage 7d, larval period 19.5d, pupal stage 3.5d, the female moth early 1d.5 mid-fall to late fall is the early stage of early development and the springing period, is the key period for the prevention and control of olive skin moth. Special insecticide powder artillery (China Patent No. 90204382 · X) shot a tree per plant, 3d, repeat 1, the effect of 95.22% fruit.