Flora surrounding rice fields as a source of alternative prey for coccinellids feeding on the pests of rice

Title:

Flora surrounding rice fields as a source of alternative prey for coccinellids feeding on the pests of rice

Creator:

Chitra Shanker, Chintagunta, Lydia, Muthusamy, Sampathkumar, Vailla, Sunil, Srinivasan, Amudhan, and Katti, Gururaj

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:340bc1cc-0c6d-430c-80df-8221ba339f66
uuid:340bc1cc-0c6d-430c-80df-8221ba339f66
issn:1210-5759
doi:10.14411/eje.2018.036

Subject:

brouci, slunéčkovití, konzervační biologie, mšice, rýže, beetles, Coccinellidae, conservation biology, aphids, rice, Coleoptera, biological control, generalist predators, gut-content analysis, prey spectrum, planthoppers, 2, and 59

Type:

model:article and TEXT

Format:

print, počítač, and online zdroj

Description:

Coccinellids are effective predators and a key component of the predator guild in rice ecosystems. In order to enhance their efficacy, a study was undertaken to assess the seasonal movement of coccinellids into rice fields and the role of the surrounding flora on their colonization. The seasonal abundance of coccinellids and their prey was recorded on the rice crop and the surrounding flora at fortnightly intervals from 2012 to 2015. Coccinellid prey range was assessed using PAGE electrophoresis. The herbivorous insects associated with weeds were Aphis gossypii Glover, Aphis craccivora (Koch), Cicadulina bipunctata (Melichar), Schizaphis graminum (Rondani), Sitobion sp., Thaia oryzivora Ghauri and Zygina maculifrons Matsumura. Of the species of coccinellids recorded in rice fields, Harmonia octomaculata (Fabricius), Micraspis discolor (F.), Propylea dissecta (Mulsant), Coccinella transversalis Fabricius, Cheilomenes sexmaculata (Fabricius), Scymnus nubilus Mulsant and Brumoides suturalis (Fabricius) were also recorded on weeds. The esterase profiles indicated that the leafhoppers and aphids on the weeds were the prey of the coccinellids before they colonized the rice fields. The coccinellids recorded on the weeds showed bands corresponding to the insects present on the weeds. Beetles collected from rice fields had different bands, some of which corresponded to the green leafhopper (GLH) Nephotettix virescens Distant, the brown planthopper (BPH) Nilaparvata lugens Stal and white backed planthopper (WBPH) Sogatella furcifera Hovarth infesting rice. In addition, some bands corresponded to hoppers and aphids that were present on the surrounding flora. The results indicate the importance of surrounding flora in the conservation and colonization of rice fields by coccinellids., Chitra Shanker, Lydia Chintagunta, Sampathkumar Muthusamy, Sunil Vailla, Amudhan Srinivasan, Gururaj Katti., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

European Journal of Entomology | 2018 Volume:115 | Number:1

Harvested from:

CDK

Metadata only:

false