摘要
用大叶桃花心木等１１种楝科植物叶的甲醇粗提物测试对中华稻蝗若虫的生物活性。结果表明，大叶桃花心木与毛麻楝的拒食率最高，分别为８７．４％与８６．９％。毒杀活性较高的有大叶桃花心木与红果米仔兰，施药后９ｄ，触杀处理死亡率分别为９０％与８３．３％，而胃毒处理的均为９４．４％，并且试虫受处理后，体重增长显著低于对照，生长发育受到严重抑制。
he insecticidal activites of 11 species of the methanol extracts from leaves of Meliaceous plants against nymph of Chinese rice grasshopper, Oxya chinensis , were tested. The results showed that the extracts from Chukrasis tabubaris var. velutina, and Swietenia macrophylla possessed 87.4% and 86.9% antifeeding rate respectively, which were higher than those of others. Spraying application and feeding on the contaminated leaf with 10% of extract of S. macrophylla after treatment in 9 days gave 90% and 944% mortality respectively, and Aglaia odorata var. chaudocensis obtained 83. 3% and 94. 4% mortality respectively. The weight gain of the treated insects was lower significantly than that of the control, which demonstrated that the growth was inhibited severely.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
1997年第4期47-51,共5页
Journal of South China Agricultural University
关键词
楝科
抽提物
中华稻蝗
杀虫活性
Meliaceae
methanol extract
Oxya chinensis
insecticidal activity
