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Control threshold analysis for the tea mosquito bug, Helopeltis pernicialis (Hemiptera: Miridae) and preliminary results concerning the efficiency of control by the green ant, Oecophylla smaragdina (Hymenoptera: Formicidae) in northern Australia

Peng, Renkang K., Christian, Keith A. and Gibb, Karen S. (1997). Control threshold analysis for the tea mosquito bug, Helopeltis pernicialis (Hemiptera: Miridae) and preliminary results concerning the efficiency of control by the green ant, Oecophylla smaragdina (Hymenoptera: Formicidae) in northern Australia. International Journal of Pest Management,43(3):233-237.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 12 times in Scopus Article | Citations

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Title Control threshold analysis for the tea mosquito bug, Helopeltis pernicialis (Hemiptera: Miridae) and preliminary results concerning the efficiency of control by the green ant, Oecophylla smaragdina (Hymenoptera: Formicidae) in northern Australia
Author Peng, Renkang K.
Christian, Keith A.
Gibb, Karen S.
Journal Name International Journal of Pest Management
Publication Date 1997
Volume Number 43
Issue Number 3
ISSN 0967-0874   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-0031390689
Start Page 233
End Page 237
Total Pages 5
Place of Publication UK
Publisher Taylor & Francis
HERDC Category C1 - Journal Article (DEST)
Abstract Helopeltis pernicialis damage to a cashew crop was very serious in each of two years, resulting in no harvest unless the trees were protected either by pesticides or biological control agents. A control threshold was determined by a combination of the net income from increased yield and the frequency of insecticide use. A damage level of 1 ± 5% achieved the highest net profit. A damage level of 6 ± 10% resulted in yield that was over 73% of the yield of the 1 ± 5% damage level, but required one third less pesticide application. Therefore, it appears that 6 ± 10% damage level can be regarded as a control threshold for H. pernicialis. The pre-flowering flush appeared to be the most appropriate time to carry out the monitoring and spray programme to control H. pernicialis. Preliminary results showed that at the time when H. pernicialis caused serious damage to a tree without O. smaragdina nests, a tree with a constant ant population was only slightly damaged, and the damage level never exceeded the control threshold of 6 ± 10%. It is suggested that O. smaragdina has high potential as a biological control agent.
DOI http://dx.doi.org/10.1080/096708797228735   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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