【摘要】 在崂山茶区采用植株拍打法调查了施药和不施药茶园节肢动物的种类和数量。结果表明,施药茶园与不施药茶园相比,节肢动物种类减少12.8%,个体数增加4.13倍,其中个体数增加最多的种类是黑刺粉虱。茶园施药对节肢动物影响最大的类群是蜘蛛,施药次数越多,蜘蛛数量越少。在经常施用农药的生产茶园,几乎没有天敌的活动。在不施用农药的茶园,节肢动物物种丰富度、多样性指数和均匀性指数均明显大于施药茶园,说明其群落结构稳定性较大,不易出现害虫爆发现象。更多还原

【Abstract】 The species and amount of arthropod in sprayed and not-sprayed tea plantations were investigated in Laoshan tea area by the way of plant shaking.The results showed that compared with that in not-sprayed tea plantation,the arthropod species in sprayed plantation decreased by 12.8% and the number of individuals increased by 4.13 times,in which,the amount of Aleurocanthus spiniferus increased the greatest.It was the spiders which got the greatest impact from the pesticides.Its number was closely relevant to the spraying frequency,the more times of spraying had been done,the fewer number of spiders existed.There were almost no natural enemies in productive tea plantations using pesticides frequently.In the tea plantations without pesticides,the species richness,diversity index and evenness index of arthropods were significantly higher than those in sprayed ones,indicating that its structure stability of community was higher and the outbreak of pest was not prone to occur.更多还原