Population parameters of Tetranychus turkestani (Acari: Prostigmata:Tetranychidae) on fourteen melon genotypes

Khederi, Saeid Javadi; Khanjani, Mohammad; Babolhavaeji, Hassan; Soleimani, Mohammad Ali; Asali Fayaz, Bahman

doi:10.22073/pja.v3i3.10153

Population parameters of Tetranychus turkestani (Acari: Prostigmata:Tetranychidae) on fourteen melon genotypes

Authors

Saeid Javadi Khederi ¹

Mohammad Khanjani ¹

Hassan Babolhavaeji ²

Mohammad Ali Soleimani ¹

Bahman Asali Fayaz ¹

¹ Department of Plant Protection, Faculty of Agriculture, Bu–Ali Sina University,Hamedan, Iran;

² Department of Plant Breeding and Agronomy, Faculty of Agriculture, Bu–Ali Sina University, Hamedan, Iran

10.22073/pja.v3i3.10153

Abstract

The antixenosis effects of Galia, CMD-158, CMC-132, CMI-157, CMI-167, CMI-175, Ananasi, Yellow Canary, Samsoori, Honey Dew, Bargney, CM-170, Khaghani and Garmsari, and the life table parameters of T. turkestani on CMC-132, CMI-167, Ananasi, Samsoori, Honey Dew and Bargney, were examined at 28 ± 1°C, 65 ± 10 % RH and a photoperiod of 16:8 L:D. In free-choice assay, the lowest preferences by adults were observed on CMI-167, Samsoori and Ananasi opposed to Honey Dew and Bargney were preferred the highest by adults of T. turkestani. The longest developmental times for both sexes were observed on CMC-132 and Ananasi, while the shortest developmental times were obtained on Honey Dew, Samsoori for females. The lowest total fecundity was observed on CMC-132 whereas the maximum was on Honey Dew. In addition, the highest value of intrinsic rate of increase (r_m), net reproductive rate (R₀), finite rate of increase (l) of T. turkestani were observed on the Honey Dew. The Weibull and Enkegaard models were used to fit survivorship (l_x) and age specific fecundity (m_x) data, respectively. The comparison and cluster analysis of biological parameters of T. turkestani on different melon genotypes demonstrated that CMC-132, Ananasi and CMI-167 were the most resistant genotypes to this pest.

Keywords

intrinsic rate of increase

life history

reproduction

plant resistance

host plant