根据三年来对板栗管理的实践,我认为,板栗要高产、稳产,必须做好修剪、施肥、防治、除草、采收等工作。夏季即将采临,现把我防治板栗病害的技术介绍如下: 板栗病虫害要以防治结合为原则,及时调查虫情,在天敌能控制虫害时尽量不用药。板栗几个主要病虫害 According to the practice of chestnut management over the past three years, I think that chestnut should be high-yielding and stable, and pruning, fertilizing, controlling, weeding and harvesting must be done. Summer is about to come, now I control chestnut disease technology are as follows: Chestnut pests and diseases should be combined with the principle of prevention and control, timely investigation of insects, natural enemies to control pests as far as possible without medication. Several major pests of chestnut