Effect of a low cost diet on the cotton leaf worm, Spodoptera littoralis nucleopolyhedrosis virus pathogenicity and sterile insect technique

Egyptian Journal of Biological Pest Control

Waheed A. A. Sayed¹  Zakia A. Jamal²  Alexandra El-Helaly³  Helmy El-Bendary⁴ 

[1] Biological Application Department, Nuclear Research Center, Atomic Energy Authority, 11787, Cairo, Egypt;Biology Department, Faculty of Science, Taliban University, 46420, Al-Sharm, Yanbu El-Bahr, Kingdom of Saudi Arabia;Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza, Egypt;Department of Plant Protection, Faculty of Agriculture, Fayoum University, Fayoum, Egypt;

关键词: Lepidopteran-diet interaction;    Gelling agents;    Bioassay;    Baculovirus infectivity;    Male sterility;   

DOI  :  10.1186/s41938-021-00464-9

来源: Springer

【 摘 要 】

BackgroundMass rearing cost of Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) is one of the critical methods for the successful utilization of Baculovirus pathogenicity and sterile insect technique (SIT). Effectiveness of both SIT and S. littoralis Nucleopolyhedrosis Virus (SpliNPV) was assessed in response to plant-based diet and substitution of agar with commercial sources of gelling components as feed.ResultsPupal and adult recoveries produced by castor bean leaves were significantly high, followed by the agar-based diet. Moreover, larval durations were significantly prolonged for (starch + gelatin)-based diet than the other dietary diets. Obviously, SpliNPV pathogenicity against the larvae reared on (starch + gelatin)-based diet was 2.5 and 2 times higher than those reared on castor leaves and agar-based diet, respectively. Contrary to expectation, the sterility doses of male moths produced by castor leaves and agar-based diet were relatively similar.ConclusionThe findings suggest that the lowest cost diets (starch + gelatin)-based diet could be used effectively for increasing the SpliNPV pathogenicity, while either castor leaves or agar-based diet could be considered as a promising choice for SIT program.

【 授权许可】

CC BY