海岸带林渔复合经营灯诱昆虫增饲螃蟹技术

Techniques of ATTRACTION Insects to Increase Crab Raising by Trap lamp in the Compound Management of Forest and Fish in the Coastal Area

用黑光灯将农、林、牧、蔬果及水域等昆虫引诱集中至精养蟹池中供螃蟹取食。能诱集昆虫近 30 0种 ,年诱虫重量达 90 .3～ 1 1 4.1kg/灯 ,每只螃蟹能取食昆虫 1 9.62± 2 8.1 5头 /晚 ,增加产量 1 1 8.35kg/hm2 ,增加产值 9468.0 0～ 1 42 0 2 .0 0元 /hm2 ,增产率达 2 2 .2 8%。同时减轻大田作物被害程度和减少化学农药的使用 。

By use of trap lamp it could change the fly direction of the insects of agriculture, forestry, animal husbandry, flower, fruit, vegetable and water living insects to the crab raising pool. Near 300 species of attracted insects could be preyed by crabs. The weight of the attracted insects each year was 90.3～114.1?kg per lamp from May to Oct.. Each crab could eat 19.62 insects per night. The harmful insects could be changed to the high quality food for the crab growth. And production of crab (could be increaed to 118.35 ?kg/hm 2), 22.28% of the rate of increasing and 9?468.00～14?202.00?yuan/hm 2 of the income in the trap lamp attracted pool area compared the CK area. On the same time, trap lamp could attract and kill the large number of insects of agriculture, forestry, animal husbandry, flower, fruit, vegetable and water living insects to crab pool and they could be all preyed by crabs.