Bioefficacy of Novaluron®, a chitin synthesis inhibitor against the tropical warehouse moth, Ephestia cautella
Journal Title: Journal of Research in Biology - Year 2013, Vol 3, Issue 1
Abstract
The tropical warehouse moth, Ephestia cautella (Lepidoptera: Pyralidae) is a major pest of stored maize in Ghana. It is controlled mainly by the use of synthetic insecticides which has become a major challenge in the stored product industry in Ghana. Both laboratory and field trials were conducted to evaluate the efficacy of novaluron, a chitin synthesis inhibitor against E. cautella. Five concentrations of Novaluron (0.1, 0.2, 0.3, 0.4 and 0.5 mL/L of water) were prepared and each concentration was topically applied on the notal regions of 10 fifth instar larvae of E. cautella per concentration. At 0.4 mL/L and 0.5 mL/L treatments, larval mortality ranged between 50-80% after 96 h of exposure. Also, Novaluron (0.5 mL/L) was used to treat four surfaces (concrete, wood, glass and plastic) usually encountered in structural insect pest management systems and the larvae exposed to these surfaces. Hocklicombi® (5 mL/L) served as positive control. Larval mortality (35.5-97.5%), pupation (0.0-35.0%) and adult emergence (0.0-20.0%) in surfaces treated with Hocklicombi® compared favourably with those treated with Novaluron (25.0-97.5%), (2.5-60%) and (0.0-42.5%), respectively. A simulated field experiment was conducted in which four batches of 5 kg of maize in miniature bags were pretreated with 0.4 mL/L Novaluron and 50 unsexed adults were introduced. This was left in a crib at the University of Ghana farm for 60 days. The field experiment showed that after 60 days of storage there was a lower weight loss in the Hocklicombi® (6.6%) and Novaluron (6.8%) treatments compared to the negative control (11.3%)
Authors and Affiliations
Sackey I, Eziah VY, Obeng-Ofori D
Keywords
Related Articles
- EP ID EP566343
- DOI -
- Views 87
- Downloads 0
Analysis on protein fingerprint, RAPD and fruit quality of tomato mutants by ion beam implantation
In this research, seeds of tomato were irradiated by ion beam or treated with ion beam and soybean DNA, and some tomato mutants with morphological variations were analyzed. Protein analysis in the leaves of mutants showe...
Prevalence of hemoglobin abnormalities in kindergartens of the city of Parakou (Benin) in 2013
Introduction: The hemoglobinopathy is a real public health problem in the world The aim of this study to épister of children with abnormalities of hemoglobin in schools, especially kindergartens in the city of Parakou Re...
Antiulcer activity of Property fruit extract of the Cucumis trigonus L. In albino rats
The effect of alcoholic fruit extract of Cucumis trigonus L. (Family: Cucurbitaceae) was evaluated for the anti-ulcerogenic activity with aspirin induced ulceration in albino rats and various biochemical parameters viz.,...
Anesthetic efficacy of clove oil and its impact on hematological and biochemical changes in Channa striatus (Bloch, 1793)
Channa striatus is one among the dominant group of air breathing freshwater fishes in Southeast Asian countries. In the present study, fish anesthetic clove oil was used to study the hematological and biochemical changes...
Species diversity of water birds in Deepor Beel, Assam
Study has been carried out to assess the water bird diversity in Deepor Beel Ramsar site of Assam from March 2007 to March 2010. Study revealed the presence of 39 species of water birds belonging to 16 families. The fami...