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油茶茶梢蛾Parametrites theae kus以幼虫前期取食叶肉,然后再转到嫩梢中为害,致使被害顶梢膨大,顶芽失水而凋萎,是造成油茶减产重要的原因之一。七十年代以来已逐渐成为我省油茶主要害虫。茶梢蛾一年一代,以幼虫潜在叶肉内越冬,待翌年三月中旬气温回升时,从叶内转蛀嫩梢为害,五月中旬幼虫在梢内开始变蛹,六月上旬为成虫羽化盛期,并开始产卵,六月中下旬幼虫陆续孵出后即潜入叶肉取食,待叶片枯黄又另迁移一新叶片,直至在叶肉内越冬。据实地调查,无论是低丘陵、丘陵、低山区和中山区均有分布,丘陵地区比低山区、中山区为害严重,山脚比山腰、山顶为害严重,稀疏林比集中连片为害严重,纯林比混交林为害严重。于五月中旬,掌握越冬代幼虫在梢内尚未羽化前,用人工修剪被害虫梢,集中烧毁,此法简便有效,省工、省钱又不会破坏自然寄生天敌,值得各地应用推广。也可掌握成虫羽化盛期喷洒1:800倍马拉松药液。利用自然寄生天敌,对防治这种害虫,极为重要。
Parametrites theae kus to the larvae prey feeding on the mesophyll, and then turn to the young shoots damage, causing the victim top tip inflated, the top bud wilting dehydration, is one of the important causes of the Camellia cut production. Since the seventies has gradually become the main pests of Camellia in our province. Tea budworm moths one generation to the larvae potential leaf winter, until the mid-March the following year, when the temperature rise, the young shoots from the leaves turn damage, mid-May larvae began to change in the tip of pupae, in early June for the adult feather Sheng And begin spawning. In late June, the larvae hatch in succession and then submerge into the mesophyll for feeding, until the leaves turn yellow and another new leaf is migrated until they winter in the mesophyll. According to the field survey, both the low hills, hills, low mountainous areas and Zhongshan are distributed. The hilly areas are more devastating than the low mountainous areas and the middle mountainous areas. The mountainsides are more serious than the mountainsides and mountaintops. Serious than mixed forest damage. In mid-May, before the winter overwintering larvae control in the tip has not yet eclosion, the artificial pest tip, concentrated burned, this method is simple and effective, labor-saving, save money without destroying natural parasitic natural enemies, it is worth to promote the application around. Can also master the emergence of adult feathers spray spray 1: 800 times marathon. The use of natural parasitic natural enemies, to control this pest, is extremely important.