Impact of IPM and non-IPM practices on sucking pest complex and natural enemies of okra (Abelmoschus esculentus l.) pests
Viswanadha Raghuteja Puvvala, N Emmanuel, A Sujatha, K Umakrishna, CP Viji and TSSK Patro
Studies on the influence of IPM and non-IPM practices were carried out during rabi season 2018-19 at College of Horticulture, Venkataramannagudem, West Godavari district, Andhra Pradesh with an objective of examining their influence on sucking pest complex and natural enemies of okra pests. The results revealed that the mean population of jassids (A. devastans devastans) was 2.82 + 0.39 number per okra leaf in IPM plot, whereas in the non-IPM plot it was 5.43 + 1.20 number per leaf. The maximum mean population of whitefly (B. tabaci) was recorded in okra grown in control plot with 4.54 + 2.24 number per leaf followed by non-IPM plot with 1.17 + 0.22 number per leaf and 0.42 + 0.08 number per okra leaf in IPM plot of okra. The minimum average population of aphids was observed in okra grown in IPM plot with 0.27 + 0.11 number per leaf followed by non-IPM plot with 1.11 + 0.40 number per leaf, whereas in control plot it was 2.79 + 1.23 number per leaf. The average population of two spotted mites per sq.cm leaf area was 0.54 + 0.28 number in IPM plot, whereas it was 1.03 + 0.41 and 4.04 + 2.71 number per sq.cm leaf area in non-IPM and control plots of okra respectively. The results further revealed that the mean population of natural enemies viz., spiders and coccinellid beetles were found 3.58 + 2.39 number per plant in IPM as compared to that of 2.70 + 2.39 number per plant in non-IPM plot, while in the control plot of okra the mean number of natural enemies recorded were 3.22 + 2.48 number per plant.
Viswanadha Raghuteja Puvvala, N Emmanuel, A Sujatha, K Umakrishna, CP Viji, TSSK Patro. Impact of IPM and non-IPM practices on sucking pest complex and natural enemies of okra (Abelmoschus esculentus l.) pests. J Entomol Zool Stud 2020;8(4):487-495.