The effects of plant cover on population of pear psylla (Cacopsylla pyricola) and its predators

Cacopsylla pyricola (Förster, 1848) (Hemiptera: Psyllidae) is a serious pest of pear in all pear growing areas. In the scope of an integrated pest management, a two consecutive years study was carried out to determine the effects of plant cover on pear psyllid population and its predators. Two treat...

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Main Author: Mohammad Saeed Emami
Format: Article
Language:English
Published: University of Ljubljana Press (Založba Univerze v Ljubljani) 2017-01-01
Series:Acta Agriculturae Slovenica
Subjects:
Online Access:https://journals.uni-lj.si/aas/article/view/12711
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author Mohammad Saeed Emami
author_facet Mohammad Saeed Emami
author_sort Mohammad Saeed Emami
collection DOAJ
description Cacopsylla pyricola (Förster, 1848) (Hemiptera: Psyllidae) is a serious pest of pear in all pear growing areas. In the scope of an integrated pest management, a two consecutive years study was carried out to determine the effects of plant cover on pear psyllid population and its predators. Two treatments including plant cover and bare ground were applied in a randomized complete block design with three replicates. The sampling of the pest and its predators were done weekly by beating technique and leaf sampling. The data were subjected to analysis of variance (ANOVA). The results showed that plant cover had significant effect on the increase of predators on the trees (P < 0.001). The psyllid specialist predator, Anthocoris nemoralis (Fabricius, 1794), had the highest population among the pear psyllid predators (0.29 per sample). Plant cover had no significant effect on reducing the population of eggs, nymphs and adults of the pear psyllid. Despite the increase in the population of predators led by plant cover, lack of their effectiveness to reduce the pear psyllid population is discussed.
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spelling doaj.art-2688e8f9da3c4c35a0df928eb22430802025-03-12T12:21:39ZengUniversity of Ljubljana Press (Založba Univerze v Ljubljani)Acta Agriculturae Slovenica1854-19412017-01-011091717810.14720/aas.2017.109.1.0719103The effects of plant cover on population of pear psylla (Cacopsylla pyricola) and its predatorsMohammad Saeed Emami0Assistant professor of Department of Plant Protection, Isfahan Research and Education Center for Agriculture and Natural Resources, Agricultural Research, Education and Extension Organization (AREEO), Isfahan, IranCacopsylla pyricola (Förster, 1848) (Hemiptera: Psyllidae) is a serious pest of pear in all pear growing areas. In the scope of an integrated pest management, a two consecutive years study was carried out to determine the effects of plant cover on pear psyllid population and its predators. Two treatments including plant cover and bare ground were applied in a randomized complete block design with three replicates. The sampling of the pest and its predators were done weekly by beating technique and leaf sampling. The data were subjected to analysis of variance (ANOVA). The results showed that plant cover had significant effect on the increase of predators on the trees (P < 0.001). The psyllid specialist predator, Anthocoris nemoralis (Fabricius, 1794), had the highest population among the pear psyllid predators (0.29 per sample). Plant cover had no significant effect on reducing the population of eggs, nymphs and adults of the pear psyllid. Despite the increase in the population of predators led by plant cover, lack of their effectiveness to reduce the pear psyllid population is discussed.https://journals.uni-lj.si/aas/article/view/12711cacopsylla pyricolapearpredatorplant cover
spellingShingle Mohammad Saeed Emami
The effects of plant cover on population of pear psylla (Cacopsylla pyricola) and its predators
Acta Agriculturae Slovenica
cacopsylla pyricola
pear
predator
plant cover
title The effects of plant cover on population of pear psylla (Cacopsylla pyricola) and its predators
title_full The effects of plant cover on population of pear psylla (Cacopsylla pyricola) and its predators
title_fullStr The effects of plant cover on population of pear psylla (Cacopsylla pyricola) and its predators
title_full_unstemmed The effects of plant cover on population of pear psylla (Cacopsylla pyricola) and its predators
title_short The effects of plant cover on population of pear psylla (Cacopsylla pyricola) and its predators
title_sort effects of plant cover on population of pear psylla cacopsylla pyricola and its predators
topic cacopsylla pyricola
pear
predator
plant cover
url https://journals.uni-lj.si/aas/article/view/12711
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