林间施放花绒寄甲防治松墨天牛试验
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摘要
通过对受松墨天牛不同危害程度的马尾松林分施放不同数量的花绒寄甲成虫,研究该天敌昆虫对松墨天牛的防治效果。试验结果表明:在轻度、中度和重度马尾松受害林分中,以侵入孔数量与花绒寄甲成虫数量的比例分别为1∶10、1∶4和1∶2时,防治效果最佳,分别达70.54%、80.52%和82.18%。在实践生产中按松林受害程度,确定花绒寄甲成虫施放量在生产中较好操作。轻度、中度、重度受害松林,每公顷分别施放1 500头、4 000头、5 000头左右的花绒寄甲成虫为宜。
T he biological control effect against M.alternatuse was studied by spraying different number of its natural enemy insect D.helophoroides adults into different victim pine stand.The results showed that the control effect was best when the number of invasion holes/the number of adults was 1/10,1/4 and 1/2 for mild,moderate and severely damaged pine forests,respectively,and the control rate was 70.54%,80.52% and 82.18%,respectively.The experimental results also showed that the application rate of D.helophoroides adults in practical production was better.For mild,moderate and severely damaged pine forests,it is advisable to place about 1,500 adults,4,000 adults and 5,000 adults,respectively,for each hectare.
T he biological control effect against M.alternatuse was studied by spraying different number of its natural enemy insect D.helophoroides adults into different victim pine stand.The results showed that the control effect was best when the number of invasion holes/the number of adults was 1/10,1/4 and 1/2 for mild,moderate and severely damaged pine forests,respectively,and the control rate was 70.54%,80.52% and 82.18%,respectively.The experimental results also showed that the application rate of D.helophoroides adults in practical production was better.For mild,moderate and severely damaged pine forests,it is advisable to place about 1,500 adults,4,000 adults and 5,000 adults,respectively,for each hectare.
引文
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[2]朱诚棋,王博,沈婧,等.松墨天牛综合防治进展[J].中国植保导刊,2017,37(2):19-24.
[3]詹远顺.泰宁县松材线虫病发生现状与防控对策[J].生物灾害科学,2014(1):91-94.
[4]颜学武.花绒寄甲人工饲料及林间应用技术研究[D].南京:南京林业大学,2014.
[5]温小遂,廖三腊,唐艳龙,等.释放花绒寄甲卵防治松褐天牛技术[J].林业科学,2017,53(10):133-138.
[6]杨远亮,杨忠岐,王小艺,等.应用花绒寄甲防治松褐天牛[J].林业科学,2013,49(3):103-109.
[7]温小遂,廖三腊,孙计拓,等.林间释放花绒寄甲对松褐天牛防效的研究[J].江西农业大学学报,2016,38(3):505-510
[8]陈水呇.松诱木设置对松墨天牛诱集效果的影响[J].青海农林科技,2016(2):30-32.
[9]李广花.花绒寄甲的寄主选择、取食利用和发育表现[D].南京:南京农业大学,2015.
[10]阳飞,钟安建,申艳,等.利用天敌防治松墨天牛研究进展[J].生物灾害科学,2014(4):337-340.