Evaluating the susceptibility of some okra genotypes to infestation with spiny bollworm Eariasinsulana (Boisd.)

International Journal of Agriculture & Environmental Science

© 2019 by SSRG - IJAES Journal

Volume 6 Issue 5

Year of Publication : 2019

Authors : Ola Barakat Salman, Atia Arab, Mohammad Ahmad

10.14445/23942568/IJAES-V6I5P102

How to Cite?

Ola Barakat Salman, Atia Arab, Mohammad Ahmad, "Evaluating the susceptibility of some okra genotypes to infestation with spiny bollworm Eariasinsulana (Boisd.)," SSRG International Journal of Agriculture & Environmental Science, vol. 6,  no. 5, pp. 4-7, 2019. Crossref, https://doi.org/10.14445/23942568/IJAES-V6I5P102

Abstract:

Spiny bollwormEariasinsulana (Lepidoptera: Nolidae) is an economic pest affecting okra plant in Syria. This study was conducted at Agricultural Scientific Research Center of Lattakiain 2018 season to evaluate the susceptibility of 16 okra genotypes to infestation with Eriasinsulana (Boisd.) under natural infestation conditions.The results indicated that there were significant differences between genotypes in terms of infestation percentage with spiny bollworm. Thegenotype 12068 expressed
relatively high resistance with infestationrate (12.78%), while 10974, 11512, 10374genotypes were highly susceptible. The infestation rateswere (18.97, 19.52, 19.34%)respectivelyThe results also showedsignificant and negative correlation between infestationrate,fruit color&length, and pubescence density and growth shape: (r = -0.56, r = -0.41, r = -0.56, r = -0.41) respectively. Susceptible genotypes were characterized byerect growth and green fruits as well as low pubescence.

Keywords:

Eariasinsulana (Boisd.), genotypes, okra, morphological characteristics, Syria.

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