The fact that children from poor families rarely have the antifeedant and choosy food. 事实也说明,贫困家庭的孩子很少有拒食和挑食的。
Antifeedant and deterrent effect of active fractions in Xanthium sibiricum leaf against insect pests and its chemical component 苍耳叶活性组分对害虫的拒食和忌避作用及其化学成分
The antifeedant activity of extract from Heynea trijuga against Pieris rapae larvae, and AshE activity and proteases activity of the highest antifeedant activity of H. 测试了海木提取物对菜青虫幼虫的拒食活性,并对拒食活性高的部分进行了乙酰胆碱酯酶活性、蛋白水解酶活性等测定。
Pelargonic acid has a obvious antifeedant action to the imago of Pissodes punctatus Langor et Zhang. 壬酸对华山松木蠹象成虫有明显的拒食作用。
Antifeedant Bioactivity of Extract from Macleya cordata against the Larvae of Pieris rapae 博落回提取物对菜粉蝶幼虫的拒食活性
The essential oil showed strong non-selective antifeedant and oviposition deterrence effect, but the persistence was not good. 龙柏精油对小菜蛾具有较强的非选择性拒食作用和产卵忌避作用,但由于精油的挥发性效果不持久。
Activity of Insect Antifeedant Influenced by Leaf Disc Thickness of Cabbage 甘蓝叶碟厚度对昆虫拒食剂拒食活性的影响
Azadirachtin, the most potent insect antifeedant and growth-regulating agent, is extracted from the seed of the neem tree, azadirachta indica A. Juss. 印楝(AzadirachtaIndicaA.Juss)种仁中含有印楝素A(azadirachtin)等活性成分,对害虫具有显著的拒食作用和生长抑制作用。
Observation on the antifeedant action of toosendanin to the larvae of the oriental armyworm 川楝素对粘虫幼虫拒食作用研究
In no-choice test, the sequences of antifeedant effect were aether> alcohol> petroleum ester> chloroform extracts. 在非选择性条件时,乙醚提取物的拒食作用最强,其次分别为乙醇和石油醚提取物,氯仿提取物的拒食作用最低。
Repellent, antifeedant and insect growth inhibitory actions of essential oils; 植物精油对害虫的忌避、拒食和生长发育抑制作用;
Among the sequential extracts of turmeric, the antifeedant action of hexane extracts was highest, the antifeedant rate was 100% and the corrected mortality after exposure 72h was 37.21%. 在姜黄的顺序提取物中,正己烷提取物对粘虫的拒食作用最强,拒食率达100%,而在处理后72h的校正死亡率为37.21%;
New resource of insect antifeedant& preliminary studies on chemical constituents in fruit oil of Celastrus angulatus 昆虫拒食剂新资源&苦皮藤果油的化学成分研究初报
The insecticidal protein had high effect on the growth and development of larvae of H.armigera, and had significant antifeedant activity. 测定了杀虫粗蛋白对棉铃虫生长发育和取食的影响。
Studies on Antifeedant Activity of 20 Plant Crude Extracts against Several Pest Insects 20种植物提取物对几种昆虫的拒食作用
All extracts of Camptotheca acuminata Decn had stronger antifeedant activity towards 3rd-instar larvae of Plutella xylostella. 喜树提取物对小菜蛾3龄幼虫有较强的拒食作用。
An antifeedant can be defined as a chemical that inhibits feeding but does not kill the insect directly; 拒食剂可以定义为能抑制昆虫取食而不直接杀死它们的化合物。
Studies on the Activity Content of Different Parts of Rhododendron molle and Pest Antifeedant 黄杜鹃不同部位有效成分含量及对害虫拒食作用的研究
A New Bioassay Method for Examining Antifeedant Activity 追踪检测拒食活性物质新的生测方法
X-ray crystal analysis on an insect antifeedant from seed oil of Euonymus fortunei 扶芳藤种油中的拒食活性化合物的X&射线晶体结构分析
The antifeedant activities, insecticidal activities of the synthesized compounds against Mythimna separata were examined by using the conventional no-choice leaf-disk method and the dipping experiment, respectively. 分别利用非选择叶碟法和浸药实验测定了香豆素衍生物对3龄粘虫的拒食和触杀活性。
The extracts activities with methanol by soxhlet extraction was the most outstanding, and its main functions were antifeedant, growth inhibition as well as some contact and stomach toxicity effects. 以索氏法的甲醇提取物活性最突出,其主要作用方式为拒食和生长发育抑制作用,有一定的触杀和胃毒作用。
In agricultural activity aspect we found it is effective in toxic action, antifeedant and development inhibition to pests. 在农用活性研究方面发现其对农业害虫有明显的毒杀作用,可引起拒食反应,或抑制害虫的生长发育。
Explore the influence of the implantation of Biological materials affected on tumor animal models from different aspects. Result: 1. The immune suppressed tree shrews which treated by Electron accelerator radiation processing were activities reduced, slow, inactive, eating less, and even antifeedant. 从不同方面探讨生物材料的植入对肿瘤动物模型的影响。结果:1.经加速器电子线照射免疫抑制处理的树鼩,射线照射后活动减少、行动迟缓、精神萎靡,进食减少,甚至拒食。
The antifeedant ratio of ethyl acetate extract to Spodoptera litura ( Fabricius) was higher than that of petroleum ether extract and normal butanol extract. 乙酸乙酯对斜纹夜蛾的拒食率都高于石油醚萃取物和正丁醇萃取物,三种不同萃取物拒食率次序是:乙酸乙酯正丁醇石油醚。
A series of β-dihydroagarofuran polyol esters were isolated from Celastrus angulatus. They are the effective insecticidal ingredients. It has the anesthesia, antifeedant and toxic effect on the pests. 从苦皮藤中分离得到的一系列β-二氢沉香呋喃多元醇酯类化合物为杀虫的有效成分,对害虫具有麻醉、拒食和毒杀作用。
Compared to tutin, most of the tested compounds showed better antifeedant and insecticidal activities. 与吐亭相比,大部分化合物表现出较好的拒食和触杀活性。
The mode of insecticidal action of ethanol extract from Angelica sinensis was combination of stomach toxic activity and antifeedant activity. 当归乙醇提取物杀虫作用方式为胃毒和拒食共同作用。