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BIOLOGICAL ASPECTS OF ANTIFEEDANTS [PDF]
Certain chemicals of plant origin may inhibit food intake in phytophagous insects. Such antifeedants act at low concentrations and are perceived by specialized deterrent receptors or by their modifying effect on normal chemosensory input. In some cases habituation to the presence of antifeedants occurs. When we want to find more chemicals which fulfill
openaire +2 more sources
Yacón is a perennial crop with high insect resistance. Its leaves have many glandular trichomes, which may be related to pest resistance. In order to collect the constituents of glandular trichomes, leaves were rinsed using dichloromethane (DCM) to ...
Kaisei Tsunaki, Masanori Morimoto
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The overuse of insecticides with limited modes of action has led to resistance in mosquito vectors. Thus, insecticides with novel modes of action are needed.
Edna Alfaro Inocente +8 more
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Osthole, the dominant bioactive constituent in the Cnidium monnieri, has shown acute pesticidal activities. However, its detailed toxicity, antifeedant, and oviposition preference effects against agricultural pests have not been fully understood ...
Fang Dong +6 more
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Photomediated Transformation of Salannin, a Tetranortriterpenoid from Azadirachta indica A. Juss
Photolysis of Salannin (1), an important bioactive compound from Azadirachta indica A.Juss (Neem), affords Δ17-isosalanninolide (2), a hitherto unknown compound, along with isosalanninolide (3) and salanninolide (4).
V. Kasinath +2 more
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The study aims to determine the chemical compounds, toxicity, and antifeedant activity of sweet flag (Acorus calamus) essential oils against third instar larvae of Spodoptera litura.
Dewi Melani +2 more
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The speciation of a methanolic extract of Zanthoxylum armatum stem bark has enabled the isolation and characterization of 11 known lignans. Among them, five compounds (6, 8–11) are reported in this plant for the first time. All of the chemical structures
Wenjuan Zhang +9 more
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Antifeedant and repellent effects of two different extracts from native Solanum species Solanum bistellatum and Solanum sisymbrifolium on Cryptotermes brevis were evaluated.
Vania Rech-Cainelli +8 more
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The botanical eurycomanone is a potent growth regulator of the diamondback moth
Eurycomanone is a quassinoid compound that is derived from Eurycoma longifolia, and it is often used as an indicator to evaluate the active ingredients of Eurycoma longifolia.
Xuehua Shao +5 more
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Key points Three promising fungal endophytes with antifeedant and larvicidal activities were reported. The antifeedant and larvicidal activities were intensified following exposure of fungal spores to 1000 Gy gamma rays.
Magdia A. Hazaa +5 more
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