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252:. Adults feed by scraping the green tissues from the leaves. With infestation, remaining tissue also falls by producing a hole. Heavy infestation can cause all leaf tissue to removed with holes. Larval stages also scrap the green tissue to lower epidermis which produces holes of irregular shape. Heavy infestations with grubs lead leaves to dried up and become brownish.
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Eggs are bright yellow, with pyriform basally rounded and oval tip. Length of an egg is about 0.67 mm. The incubation period is about 3 days. There are three larval stages. First instar is yellowish and 1.26 mm in length. Initially second instar is also yellowish, but turn to blackish brown after an
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hour of feeding. Total length of second instar is about 2.64 mm. The third and final instar is about 5.59 mm in length and blackish brown. Total larval duration is about 13 days. Pupa is black and 4.58 mm in length.
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Adult female is larger than male. Adult male is about 5.60 mm in length whereas adult female is 6.25 mm in length. Total life cycle of the beetle ranges from 21 days.
514:"Attraction of the potential biocontrol agent Galerucella placida (Coleoptera: Chrysomelidae) to the volatiles of Polygonum orientale (Polygonaceae) weed leaves"
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567:"Free fatty acids from the weed, Polygonum orientale leaves for attraction of the potential biocontrol agent, Galerucella placida (Coleoptera: Chrysomelidae)"
352:"Short-range attraction and oviposition stimulant of a biocontrol agent, Galerucella placida Baly (Coleoptera: Chrysomelidae) toward weed leaf surface waxes"
404:"Attraction of the biocontrol agent, Galerucella placida Baly (Coleoptera: Chrysomelidae) to the leaf surface alkanes of the weed, Polygonum orientale L."
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428:"Age-stage, two-sex life table and food utilization efficiencies of Galerucella placida Baly (Coleoptera: Chrysomelidae) on two Polygonaceae weeds"
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307:"Biology of Galerucella placida Baly (Coleoptera: Chrysomelidae) on the Rice-Field Weed Polygonum orientale L. (Polygonaceae)"
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469:"Effect of thermal stress on antioxidant responses of the biocontrol agent Galerucella placida (Coleoptera: Chrysomelidae)"
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199:. It is widely used as a bio-control agent in many rice and wheat fields to control weeds.
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Adult beetles are often used as biocontrol agents on the many invasive weeds such as
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270:"Galerucella placida Baly in Australia (Coleoptera: Chrysomelidae: Galerucinae)"
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Koner, Anamika; Das, Swati; Mobarak, Syed Husne; Barik, Anandamay (n.d.).
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Malik, Ujjwal; Karmakar, Amarnath; Barik, Anandamay (2016-04-01).
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Koner, Anamika; Debnath, Rahul; Barik, Anandamay (2019-12-01).
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Das, Swati; Malik, Ujjwal; Barik, Anandamay (December 2018).
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Malik, Ujjwal; Das, Swati; Barik, Anandamay (2018-09-01).
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237:. Adults are also attracted to the leaves of the weed,
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473:International Journal of Tropical Insect Science
565:Malik, Ujjwal; Barik, Anandamay (2015-05-04).
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362:(2) (published 27 August 2021): 204–218.
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709:. You can help Knowledge (XXG) by
432:Journal of Asia-Pacific Entomology
356:Bulletin of Entomological Research
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571:Biocontrol Science and Technology
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286:10.1046/j.1440-6055.2001.00245.x
274:Australian Journal of Entomology
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771:Taxa named by Joseph Sugar Baly
246:It also feeds on aquatic weed
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591:10.1080/09583157.2014.1000264
445:10.1016/j.aspen.2019.10.001
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766:Beetles described in 1878
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368:10.1017/S0007485321000730
323:10.1007/s12595-016-0203-x
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32:Scientific classification
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268:Reid, Chris AM (2001).
761:Insects of Sri Lanka
249:Polygonum hydropiper
660:Galerucella_placida
631:Galerucella placida
583:2015BioST..25..593M
530:2016Checo..26...45M
240:Polygonum orientale
234:Polygonum orientale
180:Galerucella placida
141:Galerucella placida
25:Galerucella placida
183:, is a species of
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623:Taxon identifiers
407:www.cabdirect.org
228:Polygonum glabrum
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166:Adimonia mastersi
16:Species of beetle
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711:expanding it
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756:Galerucinae
703:Galerucinae
203:Description
185:leaf beetle
110:Galerucella
750:Categories
646:Q111377306
604:2021-09-29
551:2021-09-29
498:2021-09-29
412:2021-09-29
389:2021-09-29
336:2021-09-29
291:2021-09-29
256:References
189:South Asia
89:Coleoptera
69:Arthropoda
454:208600575
384:237321293
197:Australia
187:found in
169:Blackburn
117:Species:
55:Kingdom:
49:Eukaryota
640:Wikidata
599:84579768
546:18558644
493:92159620
376:34448446
157:Synonyms
95:Family:
65:Phylum:
59:Animalia
45:Domain:
579:Bibcode
526:Bibcode
331:2449911
215:Biology
105:Genus:
85:Order:
79:Insecta
75:Class:
673:416330
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150:, 1878
701:This
595:S2CID
542:S2CID
489:S2CID
450:S2CID
380:S2CID
327:S2CID
707:stub
668:NCBI
372:PMID
231:and
195:and
148:Baly
655:AFD
587:doi
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360:112
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