学术
同安钮夜蛾幼虫空间分布及其防治药剂研究
陈志云[1,2] 唐国涛[3] 关健超[2] 李奕震[2]
[1]中山市森林病虫害防治检验站,中山528403 [2]华南农业大学林学院,中山528403 [3]梅州市林科所,中山528403
摘 要:
对同安钮夜蛾（Anua indiscriminata Moore）幼虫在桉林的分布进行了调查,并在室内测试了几种农药对其幼虫的毒性,结果表明,同安钮夜蛾幼虫在林间为聚集分布;其虫口密度在同一树冠不同方向或层次上的分布差异不显著;坡向对同安钮夜蛾幼虫的分布影响显著,南坡的虫口密度高于北坡的.在供试的农药中,25%灭幼脲Ⅲ号悬浮剂0.67 g/L液、1.8%阿维菌素乳油0.25 g/L液、保尔或锐劲特0.5 g/L液、0.3%印楝素乳油2 g/L液、1.3%鱼藤氰乳油或10%吡虫啉可湿性粉剂1 g/L液对同安钮夜蛾5～6龄幼虫的毒杀效果均达96%以上.[著者文摘]
文章出处:
《广东林业科技》-2007年23卷2期 -46-49页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1006-4427（2007）02-0046-04
Study on the Spatial Distribution of Anua indiscriminata Larvae and Toxicity of Insecticides to the Larvae
Chen Zhiyun, Tang Guotao, Guan Jianchao, Li Yizhen （ 1. Forestry Bureau of Zhongshan City, Zhongshan, 528403 ; 2. College of Forestry, South China Agricultural University; 3. Forestry Research Institue of Meizhou City）
Abstract:
The spatial distribution of Anua indiscriminata larvae in the eucalyptus plantation and toxicity of insecticides to the larvae in the laboratory were reseached. The results showed that the spatial distribution of the larvae was aggregated ; the larval population density in different directions or level layers of the tree crown was not dif- ferent significantly ;the larval population density was affected by slope directions, and the larval population density in southern slope was obviously higher than that in northern slope. 0.67 g/L dilution of 25% Chlorbenzuron, 0.25 g/L dilution of 1.8% Abamectin, 0.5 g/L dilution of 0.2% Emamectin benzoate or 5 % Fipronil, 2 g/L dilution of 0.3%Azadirachtin, 1 g/L dilution of 1.3% Rotenone ＋ Fenvalerate or 10% Imidacloprid had good control effects, and the mortalities of the 5 - 6 instar larvae were more than 96%.[著者文摘]
Key words:
Anua indiscriminata, eucalyptus, spatial distribution, insecticide
基金资助:
广东省科技厅资助的农业攻关计划项目（2004B20501014）.
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