Research progress of orchard grass and flower-visiting insects
In view of the outstanding problems existing in the cultivation and management of fruit trees,such as canopy closure,soil acidification,low biodiversity,few beneficial insects,serious occurrence of pests and diseases,and increasing use of chemical fertilizers and pesticides,many experts at home and abroad have carried out research and ecological evaluation on the intercropping grass planting technology of fruit trees.Based on analysis the selection of orchards grass species,planting management and its effects on soil physicochemical properties,weed management and natural enemy attraction,combined with the diversity of flower-visiting insects and their effects on yield and quality of fruit trees,comprehensively obtain orchard grass technology not only can enhance soli organic matter content,balance temperature and hunmidity,increase fruit yield and quailty,but also can attract flower-visiting insects to pollinate fruit trees and enhance the number of natural enemies to effectively control pests.Through the above analysis and comparison,it is concluded that from the perspective of"ecological priority,green prevention and control",combined with modern fruit tree pomiculture and pest control,selection local wild flowers and weeds for combined grass,will be more conducive to regulating orchard ecology,saving cost and increasing efficiency.
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