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果树地下害虫种类较多,由于在地下为害根部,早期不易被发现,而地上部一旦表现出不良症状,防治又较困难。严重威胁果树的生长发育。所以,对地下害虫的防治,一定要贯彻“预防为主”的方针。生产实践证明,在秋季给果树增施有机肥(主要指粪肥)的同时,拌入部分化学药剂,可有效地减少
There are many types of underground pests in fruit trees, which are not easily found in the early stage due to root damage in the ground. Once the above-ground parts show adverse symptoms, prevention and treatment are more difficult. A serious threat to the growth and development of fruit trees. Therefore, the prevention and treatment of underground pests, we must implement the “prevention first” approach. Production practice has proved that in the autumn to the organic fertilizer application of fruit trees (mainly refers to manure), while mixing in some chemicals, can effectively reduce