CONTACT EFFECT OF JUVENOID, FENOXYCARB, ON GROWTH AND REPRODUCTION OF GERMAN COCKROACH BLATTELLA GERMANICA (DICTYOPTERA: BLATTELLIDAE)

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FATHPOUR H.; MEFTAHI GH.H.; AFROUZ T.

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Journal: IRANIAN JOURNAL OF BIOLOGY Year:2009 | Volume:22 | Issue:2 Page(s): 343-353

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Title

CONTACT EFFECT OF JUVENOID, FENOXYCARB, ON GROWTH AND REPRODUCTION OF GERMAN COCKROACH BLATTELLA GERMANICA (DICTYOPTERA: BLATTELLIDAE)

Author(s)

FATHPOUR H. | MEFTAHI GH.H. | AFROUZ T. | Issue Writer Certificate

Keywords

GERMAN COCKROACHQ3

FENOXYCARBQ3

JUVENOIDQ3

ED50Q3

SD50Q3

Abstract

GERMAN COCKROACH, Blattella germanica, is a widespread universal pest that is found in residential houses, hospitals and commercial buildings. This insect is a carrier of different kinds of fungi, viruses and pathogen bacteria. Thus, regarding to public health, control of this insect is important. Due to increasing resistance to pesticides, high toxicity of these materials and environmental pollutions, one of the new methods for controlling this insect is application of juvenile hormone analogue, FENOXYCARB. This JUVENOID is a nonneurotoxic carbamate that regulates insect’s growth and reproduction. FENOXYCARB is degenerated in environment and has no poisonous property for human, so it is widely used for controlling insects. In this study, the contact effect of different concentration of FENOXYCARB (0.001, 0.01, 0.1, 1, 10 ppm) has been investigated on late fifth nymphal instar of GERMAN COCKROACH. For each concentration, 20 individual were treated, each experiment was repeated for three times, and for each concentration a group of control was set up. The treatment time was continuing until insects emerged into adults. In this stage, each treated insect was kept separately with untreated opposite mate until the formation of the first egg capsule. The results showed that, JUVENOID application was found to be effective in inducing deformation abnormalities, such as divergent, curly wing and giant nymphs. Furthermore, in all concentrations, the melanized individuals were observed and the length of sixth nymphal instar life time was increased with increasing the concentration of FENOXYCARB. The effective dose (ED50) of FENOXYCARB was 0.060 ppm and 0.034 ppm for male and female, respectively. Also, the sterility dose (SD50) of this JUVENOID was calculated for male and female 0.011 ppm and 0.010 ppm, respectively. With increasing the concentration of FENOXYCARB the percent of insects sterility was increased. So, as in 1 and 10 ppm concentration of JUVENOID all of the insects were sterilized. The results showed that there is a straight relation between twisting wing and probability of sterility. But there were not any significant differences (p£0.05) in numbers of nymph produced by oothecaes of treated and untreated insects.

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References

CONTACT EFFECT OF JUVENOID, PYRIPROXYFEN, ON INTERNAL REPRODUCTIVE ORGANS OF GERMAN COCKROACH BELATTELLA GERMANICA ( DICTYOPTERA: BLATTELLIDAE)

Cite

APA: Copy

FATHPOUR, H., MEFTAHI, GH.H., & AFROUZ, T.. (2009). CONTACT EFFECT OF JUVENOID, FENOXYCARB, ON GROWTH AND REPRODUCTION OF GERMAN COCKROACH BLATTELLA GERMANICA (DICTYOPTERA: BLATTELLIDAE). IRANIAN JOURNAL OF BIOLOGY, 22(2), 343-353. SID. https://sid.ir/paper/21075/en

Vancouver: Copy

FATHPOUR H., MEFTAHI GH.H., AFROUZ T.. CONTACT EFFECT OF JUVENOID, FENOXYCARB, ON GROWTH AND REPRODUCTION OF GERMAN COCKROACH BLATTELLA GERMANICA (DICTYOPTERA: BLATTELLIDAE). IRANIAN JOURNAL OF BIOLOGY[Internet]. 2009;22(2):343-353. Available from: https://sid.ir/paper/21075/en

IEEE: Copy

H. FATHPOUR, GH.H. MEFTAHI, and T. AFROUZ, “CONTACT EFFECT OF JUVENOID, FENOXYCARB, ON GROWTH AND REPRODUCTION OF GERMAN COCKROACH BLATTELLA GERMANICA (DICTYOPTERA: BLATTELLIDAE),” IRANIAN JOURNAL OF BIOLOGY, vol. 22, no. 2, pp. 343–353, 2009, [Online]. Available: https://sid.ir/paper/21075/en

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