KRISHI
ICAR RESEARCH DATA REPOSITORY FOR KNOWLEDGE MANAGEMENT
(An Institutional Publication and Data Inventory Repository)
"Not Available": Please do not remove the default option "Not Available" for the fields where metadata information is not available
"1001-01-01": Date not available or not applicable for filling metadata infromation
"1001-01-01": Date not available or not applicable for filling metadata infromation
Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/32674
Title: | Effect of temperature on development, survival and reproduction of the mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) on cotton, Crop Protection |
Other Titles: | Effect of temperature on development, survival and reproduction of the mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) on cotton, Crop Protection |
Authors: | ICAR_CRIDA |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR_CRIDA |
Published/ Complete Date: | 2012 |
Project Code: | Not Available |
Keywords: | development,nymphal ,instars linearly |
Publisher: | Prasad YG, Prabhakar M,Venkateswarlu B |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | (18â 40 °C). The development duration of female and male nymphal instars linearly decreased with the increase in temperature from 18 to 32 °C. Cumulative developmental time of females ranged from 43.9 d (18 °C) to 15.0 d (32 °C). Survival of crawlers to adulthood was lowest (<53%) at 20 and 36 °C and highest (80%) at 32 °C. The solenopsis mealybug exhibited obligate sexual ovoviviparous reproduction and the pre-oviposition period in mated females showed a significant decreasing trend between 20 °C (23.0 d) and 30 °C (9.5 d). The oviposition period of 10.2â 11.5 d at â ¥25 °C was nearly half the duration than at 20 °C and the highest fecundity (245 eggs + crawlers) was observed at 30 °C. Longevity of mated females was significantly prolonged at 20 °C (46.0 d) compared to 30 °C (21.4 d). Proportion of females was highest (97.5%) at 25 °C. Males required higher degree-days (363.6) for their cumulative development compared to females (317.5). Lower temperature thresholds estimated from the linear model for cumulative female and male development were 11.7 and 10.1 °C, respectively. The estimated optimum temperature thresholds for nymphal instars (32â 33.4 °C) from β type distribution function were closer to the observed maximum developmental rate compared to Lactin-2 model. The population trend index using survival, fecundity, and sex ratio of P. solenopsis with an initial population of 100 crawlers in the Morris-Watt life table model indicated a potential population increase of 170.3 and 97.6 times at 30 and 35 °C, respectively, in the next generati |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Technical Report |
Sponsors: | Not Available |
Language: | English |
Volume No.: | 39 |
Page Number: | 81-88 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/32674 |
Appears in Collections: | NRM-CRIDA-Publication |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Effect of temperature on development, survival and reproduction of the mealybug, Phenacoccus solenopsis Tinsley (Hemiptera Pseudococcidae) on cotton.pdf | 61.75 kB | Adobe PDF | View/Open |
Items in KRISHI are protected by copyright, with all rights reserved, unless otherwise indicated.