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2022 Volume 1 Issue 4
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JI Xin-ru, ZHAO Long-long. Spatial Distribution Characteristics of the First-Generation Nymphs of Cacopsylla chinensis[J]. PLANT HEALTH AND MEDICINE, 2022, (4): 44-51. doi: 10.13718/j.cnki.zwyx.2022.04.006
Citation: JI Xin-ru, ZHAO Long-long. Spatial Distribution Characteristics of the First-Generation Nymphs of Cacopsylla chinensis[J]. PLANT HEALTH AND MEDICINE, 2022, (4): 44-51. doi: 10.13718/j.cnki.zwyx.2022.04.006
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Spatial Distribution Characteristics of the First-Generation Nymphs of Cacopsylla chinensis

  • 1. College of Plant Protection, Shanxi Agricultural University, Jinzhong, Shanxi 030801, China;

  • 2. Pomology Institute, Shanxi Agricultural University, Jinzhong, Shanxi 030815, China

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  • Received Date: 12/06/2022

  • MSC: S436.612.2+9

  • Cacopsylla chinensis is an important obligate sucking insect pest in pear tree. In order to clarify the spatial distribution pattern of the first-generation nymph of pear psylla, this study investigated the spatial distribution pattern of the first-generation egg and nymph of pear psylla.Resultsshowed that winter-form pear psylla mainly oviposit on the scale of the short fruit branches, flower buds and leaf buds before germination. The average number of nymphs were 66 on new shoots, which was significantly higher than that of 18 on leaf plexus and 10 on fruit and associated leaves. The spatial distribution of first-generation nymph of pear psyll apresented an aggregated distribution, and their aggregation pattern was affected by the characteristics of maternal oviposition and its habit behavior.
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Spatial Distribution Characteristics of the First-Generation Nymphs of Cacopsylla chinensis

  • Received Date: 12/06/2022

Abstract: Cacopsylla chinensis is an important obligate sucking insect pest in pear tree. In order to clarify the spatial distribution pattern of the first-generation nymph of pear psylla, this study investigated the spatial distribution pattern of the first-generation egg and nymph of pear psylla.Resultsshowed that winter-form pear psylla mainly oviposit on the scale of the short fruit branches, flower buds and leaf buds before germination. The average number of nymphs were 66 on new shoots, which was significantly higher than that of 18 on leaf plexus and 10 on fruit and associated leaves. The spatial distribution of first-generation nymph of pear psyll apresented an aggregated distribution, and their aggregation pattern was affected by the characteristics of maternal oviposition and its habit behavior.

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