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以10年生东魁杨梅为试材,采果前25、35、45d单株挂罗帐,以不挂罗帐为对照,比较各处理果蝇防效、株产、效益及商品果率等。结果表明,罗帐处理的杨梅果蝇相对防效达86%以上。试验时间范围内,果蝇相对防效随着罗帐时间增加而提高,商品果率和优质果可溶性固形物含量随罗帐时间增加而降低。采果前35d处理的株商品果产量和效益最高,分别比对照增产33.1%和增效186.3%。综合考虑,建议在山区东魁杨梅栽培中推广应用采果前35d挂罗帐技术。
Taking 10-year-old Dongkui Bayberry as test material, the individual plants were dug at 25,35,45 d before picking, and the results were compared with those of control without fruit pest control. The results showed that the relative control efficiency of Arbutus rubra handled over 86%. Within the experimental time range, the relative control efficiency of fruit flies increased with the increase of the time, and the fruit yield and the content of high-quality fruit soluble solids decreased with increasing time. The fruit yield and benefit of the 35 days before harvesting were the highest, which increased 33.1% and 186.3% respectively compared with the control. Taken together, it is recommended in the cultivation of bayberry Dongkui popularization and application of 35d before harvesting technology.