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- Title
Effects of Insect Growth Regulators on Mortality, Survival, and Feeding of Euprosterna elaeasa (Lepidoptera: Limacodidae) Larvae.
- Authors
Martínez, Luis Carlos; Plata-Rueda, Angelica; Serrão, José Eduardo
- Abstract
The potential of insecticides that affect the growth and insect development to control Euprosterna elaeasa was evaluated. Fenoxycarb, methoxyfenozide, pyriproxyfen, and tebufenozide were assessed against E. elaeasa larvae for toxicity, survivorship, and feeding inhibition in the laboratory, and mortality in semifield conditions. Concentration–mortality bioassays demonstrated that insect growth regulators (IGRs) have a lethal effect on this insect, with pyriproxyfen (LC50 = 0.141 g L−1) being the most effective, followed by fenoxycarb (LC50 = 0.199 g L−1), methoxyfenozide (LC50 = 0.233 g L−1), and tebufenozide (LC50 = 0.259 g L−1). The survival rate was 99.8% in the control group, compared to 44.6%, 42.9%, 42.2%, and 39.5% in insects treated with pyriproxyfen, fenoxycarb, methoxyfenozide, and tebufenozide, respectively. IGRs caused feeding inhibition in E. elaeasa larvae 3 h after exposure. Furthermore, mortality in semifield conditions was similar to the results found in the laboratory. Our findings suggest that fenoxycarb, methoxyfenozide, pyriproxyfen, and tebufenozide are effective against E. elaeasa and, therefore, we confirm the potential of these IGRs for the control of this pest.
- Subjects
INSECT growth regulators; SURVIVAL rate; INSECT development; LARVAE; INSECT growth; LEPIDOPTERA
- Publication
Agronomy, 2021, Vol 11, Issue 10, p2002
- ISSN
2073-4395
- Publication type
Article
- DOI
10.3390/agronomy11102002