Influence of abiotic factors on behaviour and adult emergence pattern of coconut white grub, Leucopholis coneophora Burmeister (Coleoptera: Scarabaeidae)
Leucopholis coneophora Burmeister is a subterranean pest associated with coconut based cropping systems in south India. Feeding damage causes yellowing of fronds and yield reduction. To develop appropriate IPM strategy a basic knowledge on insect behaviour is essential. Four years studies indicated...
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| Veröffentlicht in: | Phytoparasitica 2018-07, Vol.46 (3), p.341-353 |
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| creator | P. S., Prathibha A. R. V., Kumar Subaharan, Kesavan Venugopal, Vibina |
| description | Leucopholis coneophora
Burmeister is a subterranean pest associated with coconut based cropping systems in south India. Feeding damage causes yellowing of fronds and yield reduction. To develop appropriate IPM strategy a basic knowledge on insect behaviour is essential. Four years studies indicated that, adult emergence of
L. coneophora
was commenced with summer shower in April in Kerala. Delay in summer shower delayed the emergence. After a pause in May, the emergence resumed with the setting of south west monsoon in June. The beetles did not emerge during dry spells in between the rainy days, when the soil temperature (at 10 cm depth) was ≥34.5 °C. Emergence of the beetles started at an illuminance of 124.37 ± 75.5
l
in evening and remained active till 2 ± 0.4
l
with a maximum swarming at 32.6 ± 15.1
l
. Female emergence and mating occurred at 12.04 ± 8.1
l
. Female based sex pheromone mediated communication is evident. Strong competition among the males for mating with emerging female, which was evident by a wider operational sex ratio in the initial period (1:10.11) that narrowed down to 1:4.33 in later days. The beetles neither congregate on any host plant nor exhibit phototaxis. Number of beetles entrapped in light traps varied from 1.5–16.5% and hand picking is highly significant over light trapping. Hence hand picking of beetles daily in the evening for 2 weeks commencing from the onset of south west monsoon in Kerala, in Indian subcontinent is suggested as a tool in IPM. |
| doi_str_mv | 10.1007/s12600-018-0662-x |
| format | Article |
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Burmeister is a subterranean pest associated with coconut based cropping systems in south India. Feeding damage causes yellowing of fronds and yield reduction. To develop appropriate IPM strategy a basic knowledge on insect behaviour is essential. Four years studies indicated that, adult emergence of
L. coneophora
was commenced with summer shower in April in Kerala. Delay in summer shower delayed the emergence. After a pause in May, the emergence resumed with the setting of south west monsoon in June. The beetles did not emerge during dry spells in between the rainy days, when the soil temperature (at 10 cm depth) was ≥34.5 °C. Emergence of the beetles started at an illuminance of 124.37 ± 75.5
l
in evening and remained active till 2 ± 0.4
l
with a maximum swarming at 32.6 ± 15.1
l
. Female emergence and mating occurred at 12.04 ± 8.1
l
. Female based sex pheromone mediated communication is evident. Strong competition among the males for mating with emerging female, which was evident by a wider operational sex ratio in the initial period (1:10.11) that narrowed down to 1:4.33 in later days. The beetles neither congregate on any host plant nor exhibit phototaxis. Number of beetles entrapped in light traps varied from 1.5–16.5% and hand picking is highly significant over light trapping. Hence hand picking of beetles daily in the evening for 2 weeks commencing from the onset of south west monsoon in Kerala, in Indian subcontinent is suggested as a tool in IPM.</description><identifier>ISSN: 0334-2123</identifier><identifier>EISSN: 1876-7184</identifier><identifier>DOI: 10.1007/s12600-018-0662-x</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Abiotic factors ; Agriculture ; Beetles ; Biomedical and Life Sciences ; Chemical communication ; Coleoptera ; Cropping systems ; Ecology ; Emergence ; Evening ; Fronds ; Host plants ; Illuminance ; Life Sciences ; Light traps ; Mating ; Monsoons ; Phototaxis ; Plant Pathology ; Plant Sciences ; Sex ; Sex pheromone ; Sex ratio ; Soil temperature ; Swarming ; Yellowing</subject><ispartof>Phytoparasitica, 2018-07, Vol.46 (3), p.341-353</ispartof><rights>Springer Science+Business Media B.V., part of Springer Nature 2018</rights><rights>Phytoparasitica is a copyright of Springer, (2018). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-e6114effaf200cd062061a50ad7f09dd9bc4d105881d4b0f99081a82bc988e163</citedby><cites>FETCH-LOGICAL-c316t-e6114effaf200cd062061a50ad7f09dd9bc4d105881d4b0f99081a82bc988e163</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12600-018-0662-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s12600-018-0662-x$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids></links><search><creatorcontrib>P. S., Prathibha</creatorcontrib><creatorcontrib>A. R. V., Kumar</creatorcontrib><creatorcontrib>Subaharan, Kesavan</creatorcontrib><creatorcontrib>Venugopal, Vibina</creatorcontrib><title>Influence of abiotic factors on behaviour and adult emergence pattern of coconut white grub, Leucopholis coneophora Burmeister (Coleoptera: Scarabaeidae)</title><title>Phytoparasitica</title><addtitle>Phytoparasitica</addtitle><description>Leucopholis coneophora
Burmeister is a subterranean pest associated with coconut based cropping systems in south India. Feeding damage causes yellowing of fronds and yield reduction. To develop appropriate IPM strategy a basic knowledge on insect behaviour is essential. Four years studies indicated that, adult emergence of
L. coneophora
was commenced with summer shower in April in Kerala. Delay in summer shower delayed the emergence. After a pause in May, the emergence resumed with the setting of south west monsoon in June. The beetles did not emerge during dry spells in between the rainy days, when the soil temperature (at 10 cm depth) was ≥34.5 °C. Emergence of the beetles started at an illuminance of 124.37 ± 75.5
l
in evening and remained active till 2 ± 0.4
l
with a maximum swarming at 32.6 ± 15.1
l
. Female emergence and mating occurred at 12.04 ± 8.1
l
. Female based sex pheromone mediated communication is evident. Strong competition among the males for mating with emerging female, which was evident by a wider operational sex ratio in the initial period (1:10.11) that narrowed down to 1:4.33 in later days. The beetles neither congregate on any host plant nor exhibit phototaxis. Number of beetles entrapped in light traps varied from 1.5–16.5% and hand picking is highly significant over light trapping. Hence hand picking of beetles daily in the evening for 2 weeks commencing from the onset of south west monsoon in Kerala, in Indian subcontinent is suggested as a tool in IPM.</description><subject>Abiotic factors</subject><subject>Agriculture</subject><subject>Beetles</subject><subject>Biomedical and Life Sciences</subject><subject>Chemical communication</subject><subject>Coleoptera</subject><subject>Cropping systems</subject><subject>Ecology</subject><subject>Emergence</subject><subject>Evening</subject><subject>Fronds</subject><subject>Host plants</subject><subject>Illuminance</subject><subject>Life Sciences</subject><subject>Light traps</subject><subject>Mating</subject><subject>Monsoons</subject><subject>Phototaxis</subject><subject>Plant Pathology</subject><subject>Plant Sciences</subject><subject>Sex</subject><subject>Sex pheromone</subject><subject>Sex ratio</subject><subject>Soil temperature</subject><subject>Swarming</subject><subject>Yellowing</subject><issn>0334-2123</issn><issn>1876-7184</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kc-OEzEMxiMEEqXLA3CLxAUkhrUzs5kMN7biz0qVOCyco0zitLOaJiXJwO6j8LakFIkTB8uW_f1sWR9jLxDeIkB_mVFIgAZQNSClaO4fsRWqXjY9qu4xW0Hbdo1A0T5lz3K-A6hqhBX7dRP8vFCwxKPnZpximSz3xpaYMo-Bj7Q3P6a4JG6C48Ytc-F0oLT7wxxNKZTCibXRxrAU_nM_FeK7tIxv-JYWG4_7OE-5zgOd6mT49ZIONOVK8lebONd2Lc07fmtNMqOhyRl6fcGeeDNnev43r9m3jx--bj432y-fbjbvt41tUZaGJGJH3hsvAKwDKUCiuQLjeg-Dc8NoO4dwpRS6bgQ_DKDQKDHaQSlC2a7Zy_PeY4rfF8pF39VvQz2pBQipsO1rrBmeVTbFnBN5fUzTwaQHjaBPDuizA7o6oE8O6PvKiDOTqzbsKP3b_H_oN5WljCc</recordid><startdate>20180701</startdate><enddate>20180701</enddate><creator>P. 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S., Prathibha ; A. R. V., Kumar ; Subaharan, Kesavan ; Venugopal, Vibina</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-e6114effaf200cd062061a50ad7f09dd9bc4d105881d4b0f99081a82bc988e163</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Abiotic factors</topic><topic>Agriculture</topic><topic>Beetles</topic><topic>Biomedical and Life Sciences</topic><topic>Chemical communication</topic><topic>Coleoptera</topic><topic>Cropping systems</topic><topic>Ecology</topic><topic>Emergence</topic><topic>Evening</topic><topic>Fronds</topic><topic>Host plants</topic><topic>Illuminance</topic><topic>Life Sciences</topic><topic>Light traps</topic><topic>Mating</topic><topic>Monsoons</topic><topic>Phototaxis</topic><topic>Plant Pathology</topic><topic>Plant Sciences</topic><topic>Sex</topic><topic>Sex pheromone</topic><topic>Sex ratio</topic><topic>Soil temperature</topic><topic>Swarming</topic><topic>Yellowing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>P. 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S., Prathibha</au><au>A. R. V., Kumar</au><au>Subaharan, Kesavan</au><au>Venugopal, Vibina</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of abiotic factors on behaviour and adult emergence pattern of coconut white grub, Leucopholis coneophora Burmeister (Coleoptera: Scarabaeidae)</atitle><jtitle>Phytoparasitica</jtitle><stitle>Phytoparasitica</stitle><date>2018-07-01</date><risdate>2018</risdate><volume>46</volume><issue>3</issue><spage>341</spage><epage>353</epage><pages>341-353</pages><issn>0334-2123</issn><eissn>1876-7184</eissn><abstract>Leucopholis coneophora
Burmeister is a subterranean pest associated with coconut based cropping systems in south India. Feeding damage causes yellowing of fronds and yield reduction. To develop appropriate IPM strategy a basic knowledge on insect behaviour is essential. Four years studies indicated that, adult emergence of
L. coneophora
was commenced with summer shower in April in Kerala. Delay in summer shower delayed the emergence. After a pause in May, the emergence resumed with the setting of south west monsoon in June. The beetles did not emerge during dry spells in between the rainy days, when the soil temperature (at 10 cm depth) was ≥34.5 °C. Emergence of the beetles started at an illuminance of 124.37 ± 75.5
l
in evening and remained active till 2 ± 0.4
l
with a maximum swarming at 32.6 ± 15.1
l
. Female emergence and mating occurred at 12.04 ± 8.1
l
. Female based sex pheromone mediated communication is evident. Strong competition among the males for mating with emerging female, which was evident by a wider operational sex ratio in the initial period (1:10.11) that narrowed down to 1:4.33 in later days. The beetles neither congregate on any host plant nor exhibit phototaxis. Number of beetles entrapped in light traps varied from 1.5–16.5% and hand picking is highly significant over light trapping. Hence hand picking of beetles daily in the evening for 2 weeks commencing from the onset of south west monsoon in Kerala, in Indian subcontinent is suggested as a tool in IPM.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s12600-018-0662-x</doi><tpages>13</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0334-2123 |
| ispartof | Phytoparasitica, 2018-07, Vol.46 (3), p.341-353 |
| issn | 0334-2123 1876-7184 |
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| subjects | Abiotic factors Agriculture Beetles Biomedical and Life Sciences Chemical communication Coleoptera Cropping systems Ecology Emergence Evening Fronds Host plants Illuminance Life Sciences Light traps Mating Monsoons Phototaxis Plant Pathology Plant Sciences Sex Sex pheromone Sex ratio Soil temperature Swarming Yellowing |
| title | Influence of abiotic factors on behaviour and adult emergence pattern of coconut white grub, Leucopholis coneophora Burmeister (Coleoptera: Scarabaeidae) |
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