Affiliation:
1. Department of Entomology, College of Agriculture, Arak Branch, Islamic Azad University, Arak 6134937333, Iran
2. Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization, Tehran 1475744741, Iran
3. Department of Plant Protection, College of Agriculture, Razi University, Kermanshah 6718773654, Iran
4. Department of Behavioral and Cognitive Biology, University of Vienna, 1030 Vienna, Austria
Abstract
The ladybird, Stethorus gilvifrons (Mulsant) (Coleoptera: Coccinellidae), is an important predator of two-spotted spider mites, Tetranychus urticae Koch (Acari: Tetranychidae), in southeastern Europe and western and southwestern Asia, such as Iran, India, and Turkey. To enhance forecasting the occurrence and performance of this predator in natural control and improve its usage in biological control, we evaluated and compared four non-linear oviposition models, i.e., Enkegaard, Analytis, Bieri-1, and Bieri-2. The models were validated by using data of age-specific fecundity of female S. gilvifrons at six constant temperatures (15, 20, 25, 27, 30, and 34 °C). All four models provided good fit quality to age-dependent oviposition at 15 to 30 °C (R2 0.67 to 0.94; R2adj 0.63 to 0.94) but had a poor fit at 34 °C (R2 0.33 to 0.40; R2adj 0.17 to 0.34). Within temperatures, the best performing models were Bieri-1 (R2), Bieri-2 (R2adj), and Analytis (RSS) at 15 °C, Bieri-1 at 27 °C, and Analytis at 20, 25, and 30 °C. Analytis was the best suited model across the wide temperature range tested (from 15 to 30 °C). The models presented here allow for prediction of the population dynamics of S. gilvifrons in field and greenhouse crops in temperate and subtropical climates.
Funder
Sugarcane and Products Development Company
Iranian Research Institute of Plant Protection
University of Vienna
Reference62 articles.
1. Jeppson, L.R., Keifer, H.H., and Baker, E.W. (1975). Mites Injurious to Economic Plants, University of California Press.
2. Mossadegh, M.S., and Kocheili, F. (2003). A Semi Descriptive Checklist of Identified Species of Arthropods (Agricultural, Medical) and Other Pests from Khuzestan, Iran, Shahid Chamran University Press.
3. Acaricide resistance mechanisms in the two-spotted spider mite Tetranychus urticae and other important Acari: A review;Vontas;Insect Biochem. Mol. Biol.,2010
4. Helle, W., and Sabelis, M.W. (1985). Spider Mites: Their Biology, Natural Enemies, and Control, Volume 1A, Elsevier.
5. Use of predatory mites in commercial biocontrol: Current status and future prospects;Knapp;Acarologia,2018