Assessment of some plant resistance inducers as alternative management elements for controlling arthropod pests in common bean fields

Abstract : Effectiveness of some plant resistant inducers (PRIs) was assessed in controlling arthropod pests on four varieties of common bean plants (Giza3, Giza6, Nebraska and Karnak). The assessed plant resistance inducers were two plant growth regulators (PGRs) (Jasmonic Acid "JA" and Salicylic Acid "SA") and one of silica compounds (Potassium silicate "KSi"). The obtained results revealed that the two tested PGRs could successfully manage the populations' densities of piercing sucking pests that they depleted nearly 49.29% of onion thrips Thrips tabaci population, 59.07% of potato leafhopper Empoasca decipiens population, 53.28% of cotton whitefly Bemisia tabaci population, 55.12% of aphid population and 57.69% of two-spotted spider mite Tetranychus urticae population on most common bean cultivars especially in summer season. On contrary, numbers of faba bean leaf miners Liriomyza trifolii could be reduced by field application of either potassium silicate or the growth regulators. Thus treated common bean plants with JA or KSi was recommended to achieve highest reduction rates for the leaf miners population, which reached 38.18% and 43.90% in winter and summer plantations, respectively. Finally, each of PRIs, plant cultivar and planting season may have significant combined or interacted effect on populations' densities of B. tabaci, E. decipiens and T. urticae.
Keyword : Plant resistant inducers, arthropod pests, common bean, salicylic, jasmonic, potassium silicate
Author(s) : Draz, K. A., Tabikha, R. M., Derwish, A. A., El-Feky, M. I.
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Published Issue : 2024 Vol. 19 Number 1

2024 Vol. 19 Number 1