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RISS 인기검색어
- 검색키워드
- 저자 : Waqar Jaleel (검색결과 3 건)
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The response of two Bactrocera species (Diptera: Tephritidae) to fruit volatiles
Waqar Jaleel,Yurong He,Lihua Lü 한국응용곤충학회 2019 Journal of Asia-Pacific Entomology Vol.22 No.3
Bactrocera dorsalis and B. correcta are serious pests of agricultural fruit crops. Both species are widely distributed in tropical and subtropical countries, especially in Asia. For integrated management of both Bactrocera species, understanding their olfactory behavior is vital for designing reliable control strategies. In this study, the response of female B. dorsalis and B. correcta adults to three main volatile components of fruits was evaluated using the Ytube olfactometer. Our results showed that at higher concentrations all volatile components, except α-humulene and its combination with β-caryophyllene, attracted significantly more B. dorsalis than the untreated arm. For B. correcta, all the volatile components attracted significantly more females in the treated arm than the untreated arm. However, at 5% and 1% concentration, all the volatile components had similar attraction for B. dorsalis females. In the case of female B. correcta, the percentage of attraction was similar for all the individual volatile chemicals and their respective mixtures at 10% concentration. While, at 5% and 1% concentrations, the percentage of attraction was significantly higher for a mixture of β-caryophyllene and α-humulene than that of individual volatile components and all possible mixture of two and three volatile components. Based on the olfactometer results, this study concluded that 3-carene and the mixture of β-caryophyllene and α-humulene are strong attractants for female flies of B. dorsalis and B. correcta, respectively. This study might be helpful for the bait application against the female adults of B. dorsalis and B. correcta in farms and orchards.
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Waqar Jaleel,Shafqat SAEED,Qamar Saeed,Muhammad Nadir NAQQASH,Muhammad Umair SIAL,Qurat Ul AINE,Lei YANYUAN,Zhao RUI,Yurong HE,Lihua LU 한국곤충학회 2019 Entomological Research Vol.49 No.4
Plutella xylostella is an important pest of cruciferous crops worldwide. However, information regarding the age‐stage, two‐sex life parameters of P. xylostella, which is vital for designing more effective control methods, is currently lacking. The present study reports age‐stage, two‐sex life table parameters for P. xylostella on napa cabbage (Brassica oleracea var. napa), white cabbage (B. oleracea var. capitata), and cauliflower (B. oleracea var. botrytis) under laboratory conditions at 25 ± 2°C, 50–60% relative humidity, and a 16‐h light : 8‐h dark photoperiod. The time for development from an egg to a male or female adult P. xylostella on white cabbage (mean [± SE] 41.15 ± 0.54 and 39.50 ± 0.54 days, respectively) was significantly longer than that on cauliflower and napa cabbage. Furthermore, P. xylostella fecundity on cauliflower (261.90 ± 4.53 eggs female) was significantly highest than on napa cabbage and white cabbage. Intrinsic rate of increase (r) and finite rate of increase (λ) were highest on cauliflower 0.182 day−1 and 1.199 day−1 respectively as comparison to napa cabbage and white cabbage. The highest gross reproductive rate (GRR) and net reproductive rates (R0) of P. xylostella 65.87 and 52.58 respectively on cauliflower then those of other hosts. The findings of the present study indicate that cauliflower is the most suitable cultivar (host) for the development of P. xylostella. Based on these findings, crops like cauliflower can be used as trap crops when napa cabbage and white cabbage are the main crops.
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Feeding ethogram of Antilochus coquebertii F. preying on Dysdercus koenigii
Mukhtar Adeel,Usama Altaf Muhammad,Ikhlaq Muhammad,Jaleel Waqar,Muhammad Zaka Syed,Ali Asad,Hanif Zahid 한국응용곤충학회 2023 Journal of Asia-Pacific Entomology Vol.26 No.4
Antilochus coquebertii F. (Hemiptera: Pyrrhocoridae) is one of the most important and voracious feeders of Dysdercus spp. First time, this study explained the feeding ethogram of both male and female A. coquebertii on Dysdercus koenigii adults (both male and female). Female adults of A. coquebertii consumed maximum prey (97.78 %) with respect to male (90.91%). The pre-feeding time was recorded maximum in male adults (12.22 min) as compared to female adults (4.1 min). In case of paralysis time, female adults take more time (0.47 min) as compared to male adults (0.46 min). Both male and female adults of A. coquebertii exhibited different preferences towards different body parts of D. koenigii with variable feeding time and number of feedings. Feeding ethogram showed that both of male and female A. coquebertii adults use their antennae in olfactory and gustatory sense. Based on feeding time, abdomen was more favored by male adults and thorax by female adults. While, in case of number of feedings, male adults of A. coquebertii preferred to feed on head and female on thorax of D. koenigii. Increase in body weight of female adults of A. coquebertii after feeding on its prey was found maximum (0.92 g) as compared to male adult (0.66 g). According to these findings, antennae of A. coquebertii have olfactory and gustatory sense while proboscis kept gustatory sense. Female adults of A. coquebertii is more efficient feeder of D. koenigii than male. Abdomen of D. koenigii was more preferred by male adults, while thorax by female adults of A. coquebertii.
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