1) Antifeeding activity
拒食作用
1.
The insecticidal and antifeeding activity of latex and ethanol extracts of Euphorbia helioscopia L.
使用浸渍法测定了泽漆乳浆及乙醇提取物对桃蚜的室内杀虫作用和拒食作用。
2.
It is reported that petroleum ether oil abstract of semiaquilegia adoxoides(DC) makino exhibits a high level of antifeeding activity against Pieris rapae L.
研究报道了石油醚油状粗提物对菜青虫、小菜蛾的拒食作用。
3.
Laboratory bioassay showed that Ruixiangsu possessed very strong contact toxicity and antifeeding activity to three kinds of aphids, Aphis gossypii Glover, Myzus nicotianae Blackman,and Toxoptera citricida Kirkaldy.
)的天然产物瑞香素对农业上重要的几类蚜虫具有很高的触杀作用和较好的拒食作用。
2) antifeedant effect
拒食作用
1.
Alkaloids distilled from the weed Sophora alopecuroids was bioassayed with Plagiodera versicolora for their antifeedant effects.
结果表明:苦豆草生物碱总碱及其单体对柳蓝叶甲具有较强的拒食作用,且随着浓度的升高拒食作用增强。
3) antifeeding effect
拒食作用
1.
Antifeeding effects of crude lantadene from Lantana camara on Plutella xylostella and Spodoptera litura larvae.;
马缨丹总岩茨烯对小菜蛾和斜纹夜蛾幼虫的拒食作用
2.
The antifeeding effect of the alcohol extracts of 50 tropical plants collected from the campus of South China University of Tropical Agriculture and Ba Wang mountain located in Changjiang county, Hainan province was tested with 4th larvae of Spodoptera litura in the laboratory.
此结果为进一步从这些热带植物中提取、分离和纯化高活性的拒食作用活性成分奠定了基础。
4) antifeedant activity
拒食作用
1.
The results showed that capsaicin had strong oviposition deterrence and antifeedant activity against P.
的产卵忌避和拒食作用,及其对小菜蛾体内谷胱甘肽-S-转移酶、Na+,K+-ATP酶活性的影响,以期阐明辣椒碱对害虫的作用机制。
5) antifeedant
[,ænti'fi:dənt]
拒食作用
1.
The results of our research indicate that Melia possesses a strong antifeedant.
拒食作用试验结果表明,楝属中的三种植物质杀虫剂的各种抽提物对中华稻蝗(Oxrya chinensis Thunbery)不同龄期均具有拒食作用。
2.
Treatment with 1% ethanol extracts of the flower, leaf and foot against the larvae of Pieris rapae and Spodoptera litura showed high antifeeding, the antifeedant rate of flower, leaf and foot to 5th instar larvae of P.
黄杜鹃 (Rhododendronmolle)中活性最高的化合物闹羊花素 (Rhodojaponin) -Ⅲ在花、嫩叶、根、茎中的含量分别为 0 2 0 %、0 1 4 %、0 1 1 %、0 0 8% ,其花、嫩叶、根的粗提物对菜粉蝶 5龄幼虫和斜纹夜蛾 3龄幼虫具有一定的拒食作用 ,而茎无明显的拒食效果 黄杜鹃花、嫩叶、根、茎各部位甲醇粗提物在 φ =1 0 0 %时对菜粉蝶 5龄幼虫 2 4h的拒食率分别为 92 76 %、86 78%、74 90 %、6 3 80 % ,对斜纹夜蛾 3龄幼虫的拒食率分别为 89 94%、80 0 6 %、73 4 8%和 6 3 2 2 % ,Rhodojaponin -Ⅲ的含量与其拒食活性成正相
3.
s: Results of experiments in laboratory indicated that the extracts of fruits, leaves and stems from Strophanthus divaricatus possessing strong antifeedant and insecticidal properties on the 4th instar larvae of the imported cabbage worm Pieris rapae.
羊角扭的果、叶、茎粗提物对菜粉蝶幼虫具有较好的拒食作用和毒杀作用，从羊角扭植物中分离出来的羊角扭总甙对菜粉蝶４龄幼虫的ＬＣ_(５０)和ＬＣ_(５０)分别为３２。
6) Poison and antifeedant effect
毒杀和拒食作用
补充资料：拒食剂
分子式：
CAS号：
性质：植物自身产生和人工合成的抑制昆虫味觉感受器而阻止其摄取食物的活性物质。主要化学类型有糖苷、醌和酚、萜烯、香豆素、生物碱、甾族等。如从印楝种子中提取的印楝素和从柑橘种子中提取的类柠檬苦素均是萜烯类高效拒食剂。人工合成的抑食肼(RH-5849)具有更高的活性。
CAS号：
性质：植物自身产生和人工合成的抑制昆虫味觉感受器而阻止其摄取食物的活性物质。主要化学类型有糖苷、醌和酚、萜烯、香豆素、生物碱、甾族等。如从印楝种子中提取的印楝素和从柑橘种子中提取的类柠檬苦素均是萜烯类高效拒食剂。人工合成的抑食肼(RH-5849)具有更高的活性。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条