Tri-trophic insecticidal effects of African plants against cabbage pests.
Tri-trophic insecticidal effects of African plants against cabbage pests.
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DOI：
10.1371/journal.pone.0078651
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Stevenson PC
中科院分区：
文献类型：
--
作者：
Amoabeng BW;Gurr GM;Gitau CW;Nicol HI;Munyakazi L;Stevenson PC
植物性杀虫剂越来越吸引研究的注意力，因为它们提供了新的作用模式，可以有效地控制已经对常规杀虫剂产生抗性的害虫。如果可以简单地从现成的植物中制备高活性提取物，它们可能为发展中国家的小农提供具有成本效益的虫害控制。进行田间笼和开放田间实验以评估9种常见加纳植物的杀虫潜力：山羊草，胜红蓟（菊科），暹罗杂草，Chromolaena odorata（菊科），灰姑娘杂草，Synedrella nodiflora（菊科），辣椒，辣椒（茄科），烟草，烟草（茄科）番石榴、决明子（豆科）、野芝麻、麻风树（大戟科）、蓖麻油植物、蓖麻（大戟科）和罗勒、罗勒（唇形科）。在田间笼实验中，所有植物处理的简单洗涤剂和水提取物对甘蓝蚜虫、甘蓝蚜和小菜蛾的控制与合成杀虫剂Attack®（甲氨基阿维菌素苯甲酸盐）相当，并且优于水或洗涤剂溶液的上级。在大、小雨季的田间试验中，使用一组植物提取物（A。conyzoides，C. odorata，S. nodiflora，N. tabacum和R. communis），均为对照B.油菜和小菜蛾的防治效果优于水防治和用Attack ®除草或优于Attack®除草。植物和水控制处理比Attack®对第三营养级捕食者更温和。效果级联至第一营养水平，所有植物处理给予卷心菜头重量，与小季节中的Attack®相当。在主要的季节，R。communis和A conyzoides处理比Attack®产生更低的穗产量，但其余植物药与该合成杀虫剂相当或上级。从加纳容易获得的植物中提取的简单制备的提取物具有有益的三营养效益，值得进一步研究，作为西非小农户的廉价植物保护战略。
Botanical insecticides are increasingly attracting research attention as they offer novel modes of action that may provide effective control of pests that have already developed resistance to conventional insecticides. They potentially offer cost-effective pest control to smallholder farmers in developing countries if highly active extracts can be prepared simply from readily available plants. Field cage and open field experiments were conducted to evaluate the insecticidal potential of nine common Ghanaian plants: goat weed, Ageratum conyzoides (Asteraceae), Siam weed, Chromolaena odorata (Asteraceae), Cinderella weed, Synedrella nodiflora (Asteraceae), chili pepper, Capsicum frutescens (Solanaceae), tobacco, Nicotiana tabacum (Solanaceae) cassia, Cassia sophera (Leguminosae), physic nut, Jatropha curcas (Euphorbiaceae), castor oil plant, Ricinus communis (Euphorbiaceae) and basil, Ocimum gratissimum (Lamiaceae). In field cage experiments, simple detergent and water extracts of all botanical treatments gave control of cabbage aphid, Brevicoryne brassicae and diamondback moth, Plutella xylostella, equivalent to the synthetic insecticide Attack® (emamectin benzoate) and superior to water or detergent solution. In open field experiments in the major and minor rainy seasons using a sub-set of plant extracts (A. conyzoides, C. odorata, S. nodiflora, N. tabacum and R. communis), all controlled B. brassicae and P. xylostella more effectively than water control and comparably with or better than Attack®. Botanical and water control treatments were more benign to third trophic level predators than Attack®. Effects cascaded to the first trophic level with all botanical treatments giving cabbage head weights, comparable to Attack® in the minor season. In the major season, R. communis and A conyzoides treatment gave lower head yields than Attack® but the remaining botanicals were equivalent or superior to this synthetic insecticide. Simply-prepared extracts from readily-available Ghanaian plants give beneficial, tri-trophic benefits and merit further research as an inexpensive plant protection strategy for smallholder farmers in West Africa.
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影响因子：
2.8
作者：
Macharia, I;Löhr, B;De Groote, H
通讯作者：
De Groote, H
影响因子：
2.6
作者：
Oliveira, Alexandre Conte de;Siqueira, Herbert Álvaro Abreu de;Michereff Filho, Miguel
通讯作者：
Michereff Filho, Miguel
影响因子：
1.9
作者：
Ayalew, G.;Go, C. K. P. O.
通讯作者：
Go, C. K. P. O.
DOI：
10.1079/9781845936716.0001
发表时间：
2011-01-01
期刊：
NATURAL PRODUCTS IN PLANT PEST MANAGEMENT
影响因子：
--
作者：
Dubey, N. K.;Shukla, Ravindra;Prakash, Bhanu
通讯作者：
Prakash, Bhanu
影响因子：
1.9
作者：
Charleston, DS;Kfir, R;Dicke, M
通讯作者：
Dicke, M