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Sublethal impact of paraquat on the life span and parasitic behavior of Diaeretiella rapae M'Intosh.
- Source :
-
Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes [J Environ Sci Health B] 2013; Vol. 48 (8), pp. 651-7. - Publication Year :
- 2013
-
Abstract
- This study focuses on assessing the impact of sublethal doses of paraquat on the survival, the emergence, the life span and the parasitic behavior of Diaeretiella rapae M'Intosh (Hymenoptera: Braconidae). The impact of sublethal doses was measured at room temperature using different densities of the cabbage aphid Brevicoryne brassicae. The results reveal that the field dose of paraquat caused 100% mortality in D. rapae. The percentage emergence of D. rapae decreased from 80.5% in the control group to 71.5% when treated with the lowest concentration of paraquat. Similarly, the life span of parasitoids that emerged from the mummy treated with paraquat also decreased significantly. Oviposition capability and ovipositor thrusting frequency of D. rapae also treated with sublethal dose paraquat decreased significantly along with a shortened patch residence time in the foraging area.
- Subjects :
- Animals
Aphids parasitology
Behavior, Animal drug effects
Brassica parasitology
Female
Herbicides administration & dosage
Host-Parasite Interactions drug effects
Hymenoptera physiology
Oviposition drug effects
Paraquat administration & dosage
Survival Rate
Herbicides toxicity
Hymenoptera drug effects
Paraquat toxicity
Subjects
Details
- Language :
- English
- ISSN :
- 1532-4109
- Volume :
- 48
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes
- Publication Type :
- Academic Journal
- Accession number :
- 23638892
- Full Text :
- https://doi.org/10.1080/03601234.2013.778597