Dehghani, M. (2015) Attraction behavioral response of the Acythopeus curvirostris towards host plants and lethal effect of Acroptilon repense extract on adult. Masters thesis, University of Zabol.
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Abstract
Acythopeus curvirostrs) Coleoptera: Curculionidae) is one of the most important vine crop pests, including melon, watermelon, cucumber and colocynth. The main damage is in the larval stage. There are larvae in the fruit that destroy the interior of the fruits completely, so they are out of reach of farmers and cannot be controlled directly. Giving the low impact of pesticides and their environmental effect, using behavioral characteristics to attract the symptoms of chemical and Aromatic materials of host plant (kairomones), is one of the practical ways to control the pest, by knowing host preference we will be able to achieve on-farm pest control. In this study, the attraction rate of adult male and female (Virgin) to some plants from Cucurbitacae (melon, watermelon, cucumber, and colocynth) and also to the opposite sex in a completely randomized design was studied and statistically analyzed. The lethal effects of methanol and hexane extracts of Acroptilon repense (Asteraceae) was also evaluated in different concentrations. The results of a behavioral response, analyzed by Excel software, showed that the male insects attract male and female (p = 0.02), while any attraction effect in females insects on male and female was not observed (p = 0.07) to be the reason for the existence of cumulative pheromones in male insects. The results showed that melon and watermelon were attractive to males, in compression to host plants (p=0.01, p= 0.02). Results of lethal effects, analyzed with SPSS software, showed that hexane extract of Acroptilonrepense hadlethal effects on male (Lc50 = 122 mg / insect) and female (Lc50 = 940 mg / insect) insects of Acythopeuscurvirostris, while the extract methanol showed no lethal effects.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Melon weevil, Russian knapweed, Host plant, Olfactometer, Sex Pheromone, Attractant |
| Subjects: | Q Science > QL Zoology |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 29 May 2016 09:14 |
| Last Modified: | 29 May 2016 09:14 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/696 |
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