Publications des scientifiques de l'IRD

Badshah H., Ullah F., Calatayud Paul-André, Ullah H., Ahmad B. (2017). Can toxicants used against cotton mealybug Phenacoccus solenopsis be compatible with an encyrtid parasitoid Aenasius bambawalei under laboratory conditions ?. Environmental Science and Pollution Research, 24 (6), p. 5857-5867. ISSN 0944-1344.

Titre du document
Can toxicants used against cotton mealybug Phenacoccus solenopsis be compatible with an encyrtid parasitoid Aenasius bambawalei under laboratory conditions ?
Année de publication
2017
Type de document
Article référencé dans le Web of Science WOS:000397013000071
Auteurs
Badshah H., Ullah F., Calatayud Paul-André, Ullah H., Ahmad B.
Source
Environmental Science and Pollution Research, 2017, 24 (6), p. 5857-5867 ISSN 0944-1344
The cotton mealybug, Phenacoccus solenopsis Tinsley (Sternorrhyncha: Pseudococcidae) is a serious pest of various cultivated plants in Pakistan. Recent reports show that the parasitoid Aenasius bambawalei Hayat (Hymenoptera: Encyrtidae) is a good biocontrol agent of the pest. Compatibleness is important in any IPM programme, and the insecticide used must have little or no effects on the biological control agent. This study investigated the compatibility of neem treatments and a commercial insecticide, imidacloprid on A. bambawalei. Bioassays were laid out in a completely randomized design (CRD) under laboratory conditions. Results showed that the adult stage of the parasitoid was more susceptible to the commercial insecticide imidacloprid than the concealed pupal stage. Moreover, on the basis of the International Organization for Biological Control (IOBC) toxicity categories of the commercial insecticide, imidacloprid was moderately toxic throughout the study period (Ex >80%) while neem was slightly toxic after 24 h of use (Ex <80%). Results also suggest that A. bambawalei release should be delayed for at least 1 week after neem treatments. Because imidacloprid destroys A. bambawalei, it might cause resurgence of P. solenopsis; thus, farmers should avoid integrating the insecticide in the control of P. solenopsis.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020] ; Sciences du milieu [021] ; Sciences du monde végétal [076]
Localisation
Fonds IRD [F B010069375]
Identifiant IRD
fdi:010069375
Contact