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Acharya Narendra Deva University of Agriculture & Technology, Ayodhya

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20211
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Subject: Entomology × Author: Kumar, Deepak ×
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    ThesisItemOpen Access
    Incidence and management of bark eating caterpillar (Indarbela sp.) on aonla
    (ANDUAT, kumarganj, Ayodhya, 2021-07-30) Kumar, Deepak; Chandra, Umesh
    The studies on. Incidence and management of bark.eatingcaterpillar, Indarbela sp. revealed that in Agronomy Research Farm of ANDUAT, the minimum incidence was recorded in 1st SMW (65.73 %) and maximum incidence was racorded in 48 SMW (86.89 %).The average minimum number of active holes per infested tree were recorded in 1st SMW(.66) and maximum number of active holes were recorded in 36 SMW(7.36). In Main Experiment Station Horticulture of ANDUAT, the minimum incidence was recorded in 1st SMW (55.5 %) and maximum incidence was racorded in 39 SMW (83.85%). The average minimum number of active holes per infested tree were recorded in 1st SMW(.56) and maximum number of active holes were recorded in 36 SMW(6.55). In Akma Research farm of ANDUAT, the minimum incidence was recorded in 33 SMW (44.78 %) and maximum incidence was racorded in 48 SMW (83.85%). The average minimum number of active holes per infested tree were recorded in 33 SMW(.45) and maximum number of active holes were recorded in 35 SMW(3.33). The data of relationship mean incidence of bark eating caterpillar( Indarbela sp). with abiotic factor was worked out and infestation had highly negative non-significant correlation with minimum temperature (-0.216NS) as well as maximum temperature (-0.817**), however it was significant positive correlated with relative humidity (0.761**) and non-significant negative correlated with rainfall (- 0.339) in the year of 2020. Among different managemeot practices Thrusting of wire in active hole + plugging the hole with mud, thrusting of wire + plugging holes with cotton swab dipped in Thiomethoxam WS proved quite effective in checking the infestation causing 100 and 90 per cent larval mortality.