我省广大贫下中农在三大革命斗争中,对山楂的栽培管理,积累了丰富经验。但由于没有及时交流,多数地区还处于粗放管理状态。目前生产上主要存在三个问题:一是树势衰弱产量低,多数平均株产只有几十斤或十几斤;二是虫害严重,特别是食心虫为害,虫果率较高,有的高达90%以上,影响了商 The majority of peasants and poor peasants in our province have accumulated rich experience in the cultivation and management of hawthorn in the three revolutionary struggles. However, due to lack of timely communication, most areas are still in a state of extensive management. At present, there are mainly three problems in production: First, the decline in the production capacity of shrubs is low, and most average strains produce only a few dozen catties or ten catties; the second is serious insect pests, especially insects and insects, % Or more, affecting the business