Preliminary Results on Evaluation of Chickpea,Cicer arietinum, Genotypes for Resistance to the Pulse Beetle,Callosobruchus maculatus

Abstract

The chickpea, Cicer arietinum L. (Fabales: Fabaceae), seeds are vulnerable, both in the field and in storage, to attack by seed-beetles. Beetles of the genus Callosobruchus are major storage pests of chickpea crops and cause considerable economic losses. In the present study, a total of 11 chickpea genotypes including five ‘kabuli’ (Mexican white, Diyar, CA 2969, ILC 8617 and ACC 245) and six ‘desi’ chickpeas (ICC 1069, ICC 12422, ICC 14336, ICC 4957, ICC 4969 and ICC 7509) were evaluated for resistance to the pulse beetle Callosobruchus maculatus F. (Coleoptera: Bruchidae). Resistance was evaluated by measuring percent damage to seeds. Damage to seeds by C. maculatus was manifested by the round exit holes with the ‘flap’ of seed coat made by emerging adults. Of the 11 genotypes tested, only one (ICC 4969) exhibited a complete resistance to C. maculatus in both free-choice and no-choice tests; no seed damage was found over the test period. In general, the ‘desi’ chickpeas were more resistant to C. maculatus than the ‘kabuli’ chickpeas. Among the tested chickpea genotypes, only ICC 4969 can be used as a source of C. maculatus resistance in breeding programmes that could then be grown in organic cultivation free from pesticides.

Lethal and Sublethal Effects of Essential Oils fromEucalyptus camaldulensisandHeracleum persicumAgainst the Adults of Callosobruchus Maculatus

“…C. maculatus infests cowpea before harvest and causes quantitative and qualitative seed losses in storage facilities (Ajayi and Laie 2001; Lima et al 2004; Erler et al 2009). The cowpea weevil larvae feed inside the grain seeds and cause weight losses of up to 80% after six months in storage (Aboua et al 2010).…”

Demografía de brúquidos (coleoptera: bruchidae) asociados

“…Con relación a C. maculatus, el daño que provoca a las semillas de garbanzo (C. arietinum L.) en condiciones de almacén es muy alto y podría equipararse al daño que este brúquido ocasiona también a V. unguiculata (Moreno et al 2000, Erler et al 2009, Panzarino et al 2011; aunque faltaría realizar estudios complementarios relacionados con el comportamiento en campo, para evaluar las pérdi-das que ocasionan estos insectos en V. unguiculata y con ello, generar un programa de manejo integrado.…”

Efficacy of Crude and Purified Chitinases (SsChi50) Extracted from Offal Red Scorpion Fish in Biological Control of Chickpea Weevil (C allosobruchus maculatus L.)

“…Unfortunately, they suffered considerable losses during storage (Erler et al . ). It is recorded that 55 to 60% loss in seed weight and 45.50 to 66.30% loss in protein content of pulses is due to infestation caused by these beetles (Islam and Umoetok ).…”