Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-19T09:40:23.442Z Has data issue: false hasContentIssue false
  • English
  • Français

Interactions between Bactra verutana and the Development of Purple Nutsedge (Cyperus rotundus) Grown Under Three Temperature Regimes

Published online by Cambridge University Press:  12 June 2017

K. E. Frick ,
R. D. Williams  and
R. F. Wilson
K. E. Frick
Affiliation:
South. Weed Sci. Lab., Sci. Ed. Admin., Fed. Res., U.S. Dep. Agric, Stoneville, MS 38776
R. D. Williams
Affiliation:
South. Weed Sci. Lab., Sci. Ed. Admin., Fed. Res., U.S. Dep. Agric, Stoneville, MS 38776
R. F. Wilson
Affiliation:
South. Weed Sci. Lab., Sci. Ed. Admin., Fed. Res., U.S. Dep. Agric, Stoneville, MS 38776
Get access Rights & Permissions [Opens in a new window]

Abstract

For effective biological control through augmentation, Bactra verutana Zeller, would have to be released against purple nutsedge (Cyperus rotundus L.) in May and June when temperatures are cooler than they are from late July through September when maximal natural populations of this biological control agent occur. Bactra larvae exposed to simulated mid-May (24/13 C) and mid-June (29/18 C) temperature regimes developed more slowly than larvae exposed to the mid-July (32/26 C) temperature regime, but nutsedge plant growth was also slower. Thus, the relative amounts of feeding injury were similar at all three regimes. Larval feeding generally increased the number of shoots slightly, but not significantly, reduced significantly the production of inflorescences, and reduced the weight of total dry matter produced between 28 and 49%.

Keywords

Augmentationplant injuryseasonal developmentbiological control
Type
Research Article
Information
Weed Science , Volume 26 , Issue 6 , November 1978 , pp. 550 - 553
Copyright
Copyright © 1978 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Black, C. C., Chen, T. M., and Brown, R. H. 1969. Biochemical basis for plant competition. Weed Sci. 17:338–344.Google Scholar
2. Frick, K. E. and Chandler, J. M. 1978. Augmenting the moth, Bactra verutana, in field plots for early-season suppression of purple nutsedge (Cyperus rotundus) . Weed Sci. 26 (in press).Google Scholar
3. Frick, K. E. and Garcia, C. Jr. 1975. Bactra verutana as a biological control agent for purple nutsedge. Ann. Entomol. Soc. Am. 68:7–14.Google Scholar
4. Frick, K. E. and Quimby, P. C. Jr. 1977. Biocontrol of purple nutsedge by Bactra verutana Zeller in a greenhouse. Weed Sci. 25:13–17.Google Scholar
5. Frick, K. E., Williams, R. D., and Quimby, P. C. Jr. 1978. Comparative suitability of purple nutsedge (Cyperus rotundus) and yellow nutsedge (C. esculentus) to Bactra verutana and response to larval injury and crowding under greenhouse conditions. Weed Sci. 26 (in press).Google Scholar
6. Garcia, C. Jr. and Frick, K. E. 1975. Bactra verutana, a possible biological control agent of purple and yellow nutsedge: Large scale rearing on artificial diet. Ann. Entomol. Soc. Am. 68:15–18.Google Scholar
7. Habib, R. 1976. Bactra spp. in Pakistan and their potential as biocontrol agents of Cyperus rotundus . PANS 22:499–508.Google Scholar
8. Hoagland, D. R. and Arnon, D. I. 1950. The water culture method for growing plants without soil. California Agric. Exp. Stn. Circ. 347. 32 pp.Google Scholar
9. Poinar, G. O. Jr. 1964. Studies on nutgrass insects in southern California and their effectiveness as biological control agents. J. Econ. Entomol. 57:379–383.Google Scholar
10. Poinar, G. O. Jr. 1964. Observations on nutgrass insects in Hawaii with notes on the host range of Bactra truculenta Meyrick and Athesapeuta cyperi Marshall. Proc. Hawaii Entomol. Soc. 18:417–423.Google Scholar
11. Sieckert, E. E., Ritenour, G. L., and Davis, H. G. 1974. An artificial medium and rearing techniques for the colonization of Bactra verutana . Environ. Entomol. 3:196–197.Google Scholar
12. Williams, R. D. 1978. Photoperiod affects on the reproductive biology of purple nutsedge. Weed Sci. 26 (in press).Google Scholar
13. Wills, G. D. 1975. Effect of light and temperature on growth of purple nutsedge. Weed Sci. 23:93–96.Google Scholar