CSIRO Publishing blank image blank image blank image blank imageBooksblank image blank image blank image blank imageJournalsblank image blank image blank image blank imageAbout Usblank image blank image blank image blank imageShopping Cartblank image blank image blank image You are here: Journals > Animal Production Science   
Animal Production Science
Journal Banner
  Food, fibre and pharmaceuticals from animals
blank image Search
blank image blank image
blank image
  Advanced Search

Journal Home
About the Journal
Editorial Structure
Online Early
Current Issue
Just Accepted
All Issues
Special Issues
Research Fronts
Virtual Issues
Sample Issue
For Authors
General Information
Submit Article
Author Instructions
Open Access
Awards and Prizes
For Referees
Referee Guidelines
Review an Article
For Subscribers
Subscription Prices
Customer Service
Print Publication Dates
Library Recommendation

blue arrow e-Alerts
blank image
Subscribe to our Email Alert or RSS feeds for the latest journal papers.

red arrow Connect with us
blank image
facebook twitter logo LinkedIn


Article << Previous     |     Next >>   Contents Vol 33(3)

The etiology of damage to lucerne by the green mirid, Creontiades dilutus (Stal)

K Hori and PW Miles

Australian Journal of Experimental Agriculture 33(3) 327 - 331
Published: 1993


Green mirid [Creontiades dilutus (Stsl) (Miridae: HEM)] of all developmental stages was found in lucerne throughout December and January 1989-90 at sites near Adelaide, Australia. In the laboratory, they were unable to complete development when given foliage only, but 65% completed development when provided with flowers, from which they fed preferentially on the developing ovules. Only 25% developed from egg to third instar when cut pods were the sole food source but all survivors completed their development on pods thereafter. The insects were observed to make unsuccessful attempts to feed on spotted alfalfa aphid [Therioaphis trifolii (Monell) f. maculata Aphidae (HEM)]. When fifth instars were caged on entire plants, most of the insects were subsequently found near the tops of the plants. Ten adults caged on a head with 7 pods caused them to turn yellow in 5 days, brown in 6, and withered in 7. An adult caged with 2 flowers for 5 h caused both to drop the standard petal and to abort development within the subsequent 24 h. Feeding frequency of fifth instars when given flower heads ad libitum was estimated at 18 times, for a total of 169 minutes, over a 5-h observational period. The saliva contained a pectin, endopolygalacturonase, and its injection into developing ovules and seeds probably accounts for the etiology of damage. The insects' requirement of lucerne seeds and/or ovules to complete its development, its frequency of feeding, and the abscission of whole flowers due to feeding on the ovules probably accounts for the serious losses of seed production previously reported.

Full text doi:10.1071/EA9930327

© CSIRO 1993

blank image
Subscriber Login

PDF (333 KB) $25
 Export Citation

Legal & Privacy | Contact Us | Help


© CSIRO 1996-2016