Varietal susceptibility of certain broad bean seeds to infestation with Callosobruchus maculatus (F.) and Callosobruchus chinensis (L.) (Coleoptera: Bruchidae)

Doaa Farid Osman; Shadia Mostafa Omara; Saad Salim Mohammed Hassanein; Mahrous Soliman Ghareb; Wafa Mohammed Al-Otaibi; Mohammad M E Aljameeli; Heba Abdallah Lsmail

doi:10.1016/j.sjbs.2023.103645

Varietal susceptibility of certain broad bean seeds to infestation with Callosobruchus maculatus (F.) and Callosobruchus chinensis (L.) (Coleoptera: Bruchidae)

Saudi J Biol Sci. 2023 May;30(5):103645. doi: 10.1016/j.sjbs.2023.103645. Epub 2023 Apr 6.

Authors

Doaa Farid Osman¹, Shadia Mostafa Omara¹, Saad Salim Mohammed Hassanein¹, Mahrous Soliman Ghareb², Wafa Mohammed Al-Otaibi³, Mohammad M E Aljameeli⁴, Heba Abdallah Lsmail²

Affiliations

¹ Department of Plant Protection, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
² Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza 12618, Egypt.
³ Department of Biology, College of Science, Taif University, Taif, Saudi Arabia.
⁴ Department of Biology, Faculty of Science and Arts, Northern Border University, Rafha, Saudi Arabia.

Abstract

Seeds susceptibility of eight broad bean varieties to Callosobruchus maculatus (F.) and Callosobruchus chinensis (L.) infestation were studied for the first time in free- and no-choice methods in the laboratory of Plant Protection Department, Faculty of Agriculture, Zagazig University. The relation between certain seed physical characteristics and some biological and and infestation parameters of both insects in the two studied methods were evaluated. None of these varieties were resistant to both insects, showing various levels of susceptibility. Biological and infestation parameters were significantly different among varieties except the developmental period. In free- choice method, Giza 3 was the most susceptible variety to both insects, since produced the highest progeny of 246.67 and 75.67 adults and susceptibility index (SI) of 10.25 and 7.42, respectively, while the least susceptible variety was Giza 716. In no- choice method, Nubaria 5 and Sakha 1 were the most susceptible varieties to C. chinensis, while Nubaria 3 and Giza 3 to C. maculatus. Differences between physical characters of varieties were significant. Seed hardness were correlated negatively and seed coat thickness positively with laid eggs, progeny and (SI) of both insects in free-choice method. Also seed coat thickness correlated positively with weight loss and seed damage (%) of C. chinensis and negatively of C. maculatus. To reduce seed losses the cultivation of the least susceptible variety (Giza 716) is encouraged and considered for breeding purposes to avoid insecticide usage.

Keywords: Broad bean seeds; Callosobruchus maculatus and C. chinensis; Seed damage and weight loss; Seeds physical characters; Varietal susceptibility.