naphthoquinones and azadirachtin

naphthoquinones has been researched along with azadirachtin* in 2 studies

Other Studies

2 other study(ies) available for naphthoquinones and azadirachtin

Article	Year
Effects of plant-derived compounds on larvae of a blow fly species that causes secondary myiases: laboratory studies. Phytotherapy research : PTR, 2004, Volume: 18, Issue:7 No-choice and binary-choice bioassays were used to test the effect of a range of plant-derived insecticides on the behaviour of larvae of the black blow fly Phormia regina (Meigen). Azadirachtin (100 and 10 ppm), pyrethrum extract (10 ppm) and the naphthoquinone BTG 505 (1000 ppm) acted as deterrents for P. regina larvae. The mortality of larvae was reduced in instances where they moved away from a treated diet. Larvae given a choice were heavier, when compared with larvae reared exclusively on diets containing either azadirachtin (100 or 10 ppm) or the naphthoquinones, BTG 504 (1000 ppm) or BTG 505 (1000 ppm). The deterrent effect of azadirachtin, pyrethrum and the naphthoquinone BTG 505 together with their larvicidal activity, could be utilized in prophylaxis against myiasis infections due to larvae of Phormia regina. Topics: Animals; Chrysanthemum cinerariifolium; Diet; Diptera; Feeding Behavior; Flowers; Insecticides; Larva; Limonins; Meliaceae; Myiasis; Naphthoquinones; Phytotherapy; Plant Extracts; Random Allocation; Scrophulariaceae	2004
DNA synthesis in the imaginal wing discs of the American bollworm Helicoverpa armigera (Hübner). Journal of biosciences, 2002, Volume: 27, Issue:2 The effect of two insect growth regulators of plant origin viz. plumbagin and azadirachtin and the ecdysteroids 20-hydroxyecdysone, makisterone A and a phytoecdysteroid on DNA synthesis in imaginal wing discs of day 4 final instar Helicoverpa armigera larvae was studied. DNA synthesis increased with increase in time of incubation up to 8 h and decreased later without the addition of moulting hormone. Addition of 20-hydroxyecdysone supported long term acquisition of competence for DNA synthesis in the wing discs. Both DNA synthesis and protein content were drastically reduced in plumbagin and azadirachtin-treated insects. Under in vitro conditions, plumbagin had a more pronounced inhibitory effect than azadirachtin. All the ecdysteroids tested, viz. makisterone A, 20-hydroxyecdysone and the ecdysteroidal fraction from the silver fern Cheilanthes farinosa enhanced DNA synthesis. Topics: Animals; DNA; Ecdysone; Ecdysteroids; Ecdysterone; Insect Proteins; Insecticides; Larva; Limonins; Moths; Naphthoquinones; Triterpenes; Wings, Animal	2002

Article

Year

Effects of plant-derived compounds on larvae of a blow fly species that causes secondary myiases: laboratory studies.

Phytotherapy research : PTR, 2004, Volume: 18, Issue:7

No-choice and binary-choice bioassays were used to test the effect of a range of plant-derived insecticides on the behaviour of larvae of the black blow fly Phormia regina (Meigen). Azadirachtin (100 and 10 ppm), pyrethrum extract (10 ppm) and the naphthoquinone BTG 505 (1000 ppm) acted as deterrents for P. regina larvae. The mortality of larvae was reduced in instances where they moved away from a treated diet. Larvae given a choice were heavier, when compared with larvae reared exclusively on diets containing either azadirachtin (100 or 10 ppm) or the naphthoquinones, BTG 504 (1000 ppm) or BTG 505 (1000 ppm). The deterrent effect of azadirachtin, pyrethrum and the naphthoquinone BTG 505 together with their larvicidal activity, could be utilized in prophylaxis against myiasis infections due to larvae of Phormia regina.

Topics: Animals; Chrysanthemum cinerariifolium; Diet; Diptera; Feeding Behavior; Flowers; Insecticides; Larva; Limonins; Meliaceae; Myiasis; Naphthoquinones; Phytotherapy; Plant Extracts; Random Allocation; Scrophulariaceae

2004

DNA synthesis in the imaginal wing discs of the American bollworm Helicoverpa armigera (Hübner).

Journal of biosciences, 2002, Volume: 27, Issue:2

The effect of two insect growth regulators of plant origin viz. plumbagin and azadirachtin and the ecdysteroids 20-hydroxyecdysone, makisterone A and a phytoecdysteroid on DNA synthesis in imaginal wing discs of day 4 final instar Helicoverpa armigera larvae was studied. DNA synthesis increased with increase in time of incubation up to 8 h and decreased later without the addition of moulting hormone. Addition of 20-hydroxyecdysone supported long term acquisition of competence for DNA synthesis in the wing discs. Both DNA synthesis and protein content were drastically reduced in plumbagin and azadirachtin-treated insects. Under in vitro conditions, plumbagin had a more pronounced inhibitory effect than azadirachtin. All the ecdysteroids tested, viz. makisterone A, 20-hydroxyecdysone and the ecdysteroidal fraction from the silver fern Cheilanthes farinosa enhanced DNA synthesis.

Topics: Animals; DNA; Ecdysone; Ecdysteroids; Ecdysterone; Insect Proteins; Insecticides; Larva; Limonins; Moths; Naphthoquinones; Triterpenes; Wings, Animal

2002