Spatial variation of important mulberry pests and their natural enemies
Mulberry is a silkworm food plant (<em>Bombyxmori</em>. L) that is seriously affected by many insect pests. The incidence of <em>Diaphania</em> <em>pulverulentalis</em> (Hampson), <em>Maconellicoccus</em> <em>hirsutus</em> (Green), <em&g...
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| Format: | Article |
| Language: | English |
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PAGEPress Publications
2017-04-01
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| Series: | Journal of Entomological and Acarological Research |
| Online Access: | http://www.pagepressjournals.org/index.php/jear/article/view/5942 |
| _version_ | 1818862622014963712 |
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| author | A. Mohan J. Ravikumar D. Senthilkumar |
| author_facet | A. Mohan J. Ravikumar D. Senthilkumar |
| author_sort | A. Mohan |
| collection | DOAJ |
| description | Mulberry is a silkworm food plant (<em>Bombyxmori</em>. L) that is seriously affected by many insect pests. The incidence of <em>Diaphania</em> <em>pulverulentalis</em> (Hampson), <em>Maconellicoccus</em> <em>hirsutus</em> (Green), <em>Paracoccus marginatus</em> (Williams and Granara de Willink), <em>Aleurodiscus</em> <em>dispersus</em> (Russels) and <em>Pseudodendrothrips</em> <em>mori</em> (Niwa) and their natural enemies, <em>viz</em>. coccinellids and spiders (/100 plants), were observed through survey and surveillance for 3 months. In February 2013, the incidence of insect pests in Vaikkalpattarai and Reddipudur villages (India) was: <em>D. pulverulentalis,</em> 1.20 and 0.85%; <em>P. marginatus</em>, 6.80 and 33.10%; <em>P. mori</em> 42.98 and 45.50%, respectively. Further, the infestation of <em>M</em>. <em>hirsutus</em> (1.40%) and <em>A. dispersus</em> (59.72%) was also observed in February at Vaikkalpattarai. The population of coccinellids was high in December (1.02 and 0.84/100 plants), but the spider population was even higher in February and January (1.04 and 1.81/100 plants). Population of pests had a significant positive correlation with relative humidity. The population of coccinellids and spiders have positive correlation with temperature and mulberry pests infestation. The natural enemies observed in the study were mostly the ladybird beetles, <em>Psyllobora</em> <em>bisoctonotata</em> and unidentified species of spiders. |
| first_indexed | 2024-12-19T10:02:47Z |
| format | Article |
| id | doaj.art-06dc3135184a4154a0844b914f6fd05f |
| institution | Directory Open Access Journal |
| issn | 2038-324X 2279-7084 |
| language | English |
| last_indexed | 2024-12-19T10:02:47Z |
| publishDate | 2017-04-01 |
| publisher | PAGEPress Publications |
| record_format | Article |
| series | Journal of Entomological and Acarological Research |
| spelling | doaj.art-06dc3135184a4154a0844b914f6fd05f2022-12-21T20:26:35ZengPAGEPress PublicationsJournal of Entomological and Acarological Research2038-324X2279-70842017-04-0149110.4081/jear.2017.59425238Spatial variation of important mulberry pests and their natural enemiesA. Mohan0J. Ravikumar1D. Senthilkumar2Department of Zoology, Kandaswami Kandar’s College, NamakkalRegional Sericultural Research Station, SalemDepartment of Zoology, Kandaswami Kandar’s College, NamakkalMulberry is a silkworm food plant (<em>Bombyxmori</em>. L) that is seriously affected by many insect pests. The incidence of <em>Diaphania</em> <em>pulverulentalis</em> (Hampson), <em>Maconellicoccus</em> <em>hirsutus</em> (Green), <em>Paracoccus marginatus</em> (Williams and Granara de Willink), <em>Aleurodiscus</em> <em>dispersus</em> (Russels) and <em>Pseudodendrothrips</em> <em>mori</em> (Niwa) and their natural enemies, <em>viz</em>. coccinellids and spiders (/100 plants), were observed through survey and surveillance for 3 months. In February 2013, the incidence of insect pests in Vaikkalpattarai and Reddipudur villages (India) was: <em>D. pulverulentalis,</em> 1.20 and 0.85%; <em>P. marginatus</em>, 6.80 and 33.10%; <em>P. mori</em> 42.98 and 45.50%, respectively. Further, the infestation of <em>M</em>. <em>hirsutus</em> (1.40%) and <em>A. dispersus</em> (59.72%) was also observed in February at Vaikkalpattarai. The population of coccinellids was high in December (1.02 and 0.84/100 plants), but the spider population was even higher in February and January (1.04 and 1.81/100 plants). Population of pests had a significant positive correlation with relative humidity. The population of coccinellids and spiders have positive correlation with temperature and mulberry pests infestation. The natural enemies observed in the study were mostly the ladybird beetles, <em>Psyllobora</em> <em>bisoctonotata</em> and unidentified species of spiders.http://www.pagepressjournals.org/index.php/jear/article/view/5942 |
| spellingShingle | A. Mohan J. Ravikumar D. Senthilkumar Spatial variation of important mulberry pests and their natural enemies Journal of Entomological and Acarological Research |
| title | Spatial variation of important mulberry pests and their natural enemies |
| title_full | Spatial variation of important mulberry pests and their natural enemies |
| title_fullStr | Spatial variation of important mulberry pests and their natural enemies |
| title_full_unstemmed | Spatial variation of important mulberry pests and their natural enemies |
| title_short | Spatial variation of important mulberry pests and their natural enemies |
| title_sort | spatial variation of important mulberry pests and their natural enemies |
| url | http://www.pagepressjournals.org/index.php/jear/article/view/5942 |
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