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首页> 外文期刊>Indian Journal of Forestry >FEEDING AND OPPOSITIONAL PREFERENCE OFTEAK SKELETONIZER EUTECTONAMACHAERALIS WALKER (PYRALIDAE: LEPIDOPTERA)
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FEEDING AND OPPOSITIONAL PREFERENCE OFTEAK SKELETONIZER EUTECTONAMACHAERALIS WALKER (PYRALIDAE: LEPIDOPTERA)

机译：柚木骨骼化石EUTECTONAMACHAERALIS WALKER（PYRALIDAE：LEPIDOPTERA）的进食和对立偏好

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摘要

Teak (Tectona grandis L. f.), is largely determined by climate and soil type, it can be grown in almost every part of the country except the dry western zone. All the stages in the growth of Teak from seed to mature trees are damaged by insect pests.Among these, the most important leaf feeders is the Teak skeletonizer, Eutectona machaeralis Walker (Pyralidae: Lepidoptera) and it causes severe damage to foliage in the nursery and during the growth period of trees. Because of the awareness on the detrimental effects of synthetic insecticides to the operator and the environment, bio- based management is gaining momentum. Availability, quantity and quality of the bio-products are complex and difficult. So, the present study aims to minimize the quantity of bio-products needed there by identifying the actual site of the activity of the insect pest to be controlled on a tree. Results of the present investigation on feeding and egg laying preference of the larvae and moths of E. machaeralis clearly indicated that the tender leaves (1-3 days old) are the most preferred stage. Hence, management practices can be adopted towards the tender foliage instead of the whole tree to control the population of E. machaeralis. This will not only reduce the cost of plant protection but increase the cost benefit ratio.
机译：柚木（Tectona grandis L. f。）在很大程度上取决于气候和土壤类型，除干旱的西部地区外，几乎可以在全国各地种植柚木。柚木从种子到成熟树木生长的所有阶段均受到害虫的破坏，其中最重要的给叶器是柚木骨架化器Eutectona machaeralis Walker（Pyralidae：Lepidoptera），对苗圃的叶子造成严重破坏在树木的生长期由于意识到合成杀虫剂对操作者和环境的有害影响，基于生物的管理正在获得发展。生物产品的可用性，数量和质量是复杂而困难的。因此，本研究旨在通过确定要控制在树上的害虫的实际活动位置，来最大程度地减少那里需要的生物产品的数量。本研究的结果表明，机械幼虫的幼虫和蛾类的取食和产卵偏爱是最优选的阶段（1-3天大）。因此，可以对嫩叶而不是整棵树采取管理措施，以控制马氏大肠杆菌的种群。这不仅会降低植物保护的成本，而且会增加成本效益比。

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