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为了确保茶叶优质丰产,必需适时防治茶树虫害。多年来,笔者先后在省内30多个产茶县调查,了解茶树虫害的发生和防治方法,发现不少茶场,虽经喷药防治但杀虫效果很低。分析其原因:主要由于用药不及时,而且喷洒速度过快,多把药液喷在叶面。这种喷药的方法,虫害未见明显减轻,经过20多天后,虫口仍很密集,未能达到预期的防治效果。怎样提高茶树虫害的防治效果?以下几点一定要做到。
In order to ensure high quality and high yield of tea, tea tree pests must be timely controlled. Over the years, I have in the province more than 30 tea investigation, to understand the occurrence and control methods of tea tree pests and found that many tea farms, although the spray control but insecticidal effect is very low. Analysis of the reasons: mainly due to medication is not timely, but also spray too fast, and more liquid spray in the foliage. This spraying method, no significant reduction of pests, after more than 20 days, the population is still very dense insects, failed to achieve the desired control effect. How to improve the control effect of tea tree pests? The following must be done.