搜索结果: 1-14 共查到“农学 insecticidal activity”相关记录14条 . 查询时间(0.109 秒)
Insecticidal Activity of Chitosans of Different Molecular Weights and Chitosan-metal Complexes against Cotton Leafworm Spodoptera littoralis and Oleander Aphid Aphis nerii
arthropod pests larval mortality biopolymer
2015/3/9
As an alternative to synthetic pesticides, chitosan has received much attention as a biopolymer active against
some agricultural pests. The, insecticidal activity of chitosans of four molecular weig...
Potential insecticidal activity of extracts from 18 species of medicinal plants on larvae of Spodoptera littoralis – Short Communication
plant extract medicinal plants Spodoptera littoralis insecticidal activity
2015/1/30
Insecticidal activity of methanol extracts from 18 species of medicinal plants was tested on 3rd instar larvae of the Egyptian cottonworm (Spodoptera littoralis). All extracts were toxic to larvae. Ex...
Insecticidal Activity of Flower of Tagetes erecta L. against Tribolium castaneum (Herbst)
Insecticidal Tagetes erecta Tribolium castaneum
2010/11/15
The crude extracts and its fractions of the flower of Tagetes erecta Linn. were tested for
insecticidal activity against a stored product insect pest, Tribolium castaneum (Herbst). The chloroform fra...
Insecticidal Activity of N-Acyl-N-（4-aryloxybenzyl）pyrazole-5-carboxamides
insecticidal acitivity Spodoptera litura N-acyl-N-(4-aryloxybenzyl)pyrazole-5-carboxamides
2009/3/7
Insecticidal Activity of N-Acyl-N-(4-aryloxybenzyl)pyrazole-5-carboxamides.
Insecticidal Activity of Pyridalyl：Acute and Sub-Acute Symptoms in Spodoptera litura Larvae
pyridalyl insecticidal activity Spodoptera litura Lepidoptera
2009/3/7
The insecticidal action of pyridalyl at various dosages against S. litura larva was observed. Larvae treated with 100 ng/larva and higher dosages were killed within 6 hr without any conspicuous symp...
Effects of Halogen Introduction at the C5 Position of the Imidacloprid Pyridine Ring upon Insecticidal Activity
neonicotinoid insecticide imidacloprid American cockroach insecticidal activity
2009/3/5
Following a recent report of unexpectedly high affinity of 5-azidoimidacloprid to insect nicotinic acetylcholine receptor, derivatives with four halogen atoms and cyano and nitro were prepared, and ...
Insecticidal activity of imidacloprid derivatives with an alkoxy group at the C5 position of the pyridine ring
neonicotinoid insecticide imidacloprid American cockroach insecticidal activity alkoxy-substituted pyridine
2009/3/5
Six derivatives of imidacloprid with an alkoxy group introduced at the fifth position on the pyridine ring were prepared. Minimal lethal doses in mol (MLDs) were determined in American cockroaches b...
A novel function of housefly glutathione S-transferase 6B—Its effect on the retention and increase of insecticidal activity of the insecticide prothiofos
housefly glutathione S-transferase GST6A and 6B resistance suppression oxidative glutathione conjugation of prothiofos oxon
2009/3/5
Housefly glutathione S-transferases 1, 3, 4, 6A and 6B were obtained from organophosphorus (OP)-resistant Yachiyo and susceptible Takatsuki strains, respectively. Over 90% homology was found between...
Preparation of 5-chloro-6-fluoroimidacloprid analogs and comparison of their insecticidal activity in a laboratory test with a 6-chloro-5-fluoro analog
imidacloprid neonicotinoid fluorinated pyridine aphid planthopper
2009/3/5
Five new neonicotinoid compounds bearing a 5-chloro-6-fluoronicotinyl group were prepared and their insecticidal activity against brown rice planthopper, green peach aphid and common cutworm under l...
Study on the mechanism of insecticidal activity through disruption of intracellular calcium homeostasis
flubendiamide Ca2+ pump insecticide benzendicarboxamide
2009/3/5
Flubendiamide is a new compound developed as an insecticide with potent activity against lepidopterous pests. The present study demonstrated that the compound possessed insecticidal activity through...
Quantitative relationship between insecticidal activity and Ca2+ pump stimulation by flubendiamide and its related compounds
flubendiamide Ca2+ pump insecticide benzenedicarboxamide
2009/3/5
Flubendiamide is the first benzenedicarboxamide compound developed as an insecticide with potent activity against lepidopterous pests. It has already been clarified that insecticidal activity of the...
Insecticidal activity of Trachyspermum ammi (Umbelliferae), Anethum graveolens (Umbelliferae) and Nigella sativa (Ranunculaceae) essential oils against stored-product beetle Tribolium castaneum Herbst（Coleoptera: Tenebrionidae）
Trachyspermum ammi Anethum graveolens Nigella sativa Tribolium castaneum insecticidal activity
2009/3/4
The essential oils from the dried fruits of three common spices, Trachyspermum ammi, Anethum graveolens and Nigella sativa were isolated by hydrodistillation and its repellent, toxic and developmental...
INSECTICIDAL ACTIVITY OF AERIAL PARTS OF SYNEDRELLA NODIFLORA GAERTN (COMPOSITAE) ON SPODOPTERA LITURA (FAB.)
Synedrella nodifl ora insecticidal activity phytochemistry
2010/12/2
Spodoptera litura (Fabricius) is the most serious pest of many cultivated and non-cultivated crops and it developed resistance against many synthetic pesticides. The impact of a Compositae annual weed...
INSECTICIDAL ACTIVITY OF AERIAL PARTS OF SYNEDRELLA NODIFLORA GAERTN (COMPOSITAE) ON SPODOPTERA LITURA (FAB.)
Synedrella nodifl ora insecticidal activity phytochemistry
2010/12/1
Spodoptera litura (Fabricius) is the most serious pest of many cultivated and non-cultivated crops and it developed resistance against many synthetic pesticides. The impact of a Compositae annual weed...