Arthropod Fauna Associated with Rose and Management of the Pestiferous Species

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Date
2021
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MPUAT, Udaipur
Abstract
Investigations on “Arthropod fauna associated with rose and management of the pestiferous species” were carried out at Farmer’s field, Udaipur, during Rabi season 2020-21, with the objectives of recording the pestiferous insect and mite fauna associated with rose; the key pollinators; and evaluating the bio-efficacy of some pesticides. The arthropod fauna associated with rose comprised 17 species of insects (6 pests and 11 pollinators) that included thrips, aphids, the rose bud caterpillar, blackflies and the scurfy rose scale. The major insect pollinators included members of Hymenoptera and Diptera. During the crop season, the peak populations of thrips, aphids and larvae of H. armigera were recorded in the first week of April (9.80 thrips/flower buds), first week of March (17.04 aphids/flower buds) and first week of March (0.56 larvae per flower) 2021, respectively. The mean atmospheric temperature evinced a significant positive correlation with thrips (r = 0.832) and H. armigera (r = 0.607); thrips (r = 0.583) and aphids (r=0.622) had a significant positive correlation with sunshine; whereas, the relative humidity indicates significant negative correlation with thrips (r = -0.720), aphids (r = 0.581) and H. armigera (r = -0.817), respectively. The pollinators’ the total population of pollinators showed a significant positive correlation (r=0.573) with the mean atmospheric temperature; while a significant negative correlation (r=-0.769) with relative humidity. The relative density of pollinators visiting rose comprised: honeybees, A. florea & A. dorsata with (68.24%); solitary bees (12.08%) and dipteran flies (19.55%). Most pollinators preferred to visit rose flowers during 9 to 11 hours of the day. The overall efficacy of pesticides against sap sucking insects of rose (thrips and aphids) showed Fipronil (0.3% GR) and Spiromesifen (240 SC) to be significantly superior over all the other treatments, followed by NSKE (5%) and Dashparni (10%) that were significantly better than control 1, 3 and 7 DAS.
Description
Arthropod Fauna Associated with Rose and Management of the Pestiferous Species
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Citation
Singh R. And Dangi N.L.
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