Aenasius arizonensis (Girault, 1915)
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publication ID |
https://doi.org/ 10.3906/zoo-2102-2 |
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persistent identifier |
https://treatment.plazi.org/id/9B1A7709-FFE2-FFC0-167B-5A89F24BF92A |
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treatment provided by |
Felipe |
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scientific name |
Aenasius arizonensis |
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3.3. The Release of Aenasius arizonensis View in CoL on Hibiscus rosa-sinensis in field conditions in Adana and Mersin provinces
The cotton mealybug, P. solenopsis cause severe damages on H. rosa-sinensis in parks and recreational areas in Adana and Mersin provinces. Owing to heavy infestation of P. solenopsis , parasitoid’s population increased in the study area. The parasitism rate was determined in selected parks in Adana and Mersin in 2018 during this study. Firstly, parasitized and unparasitized mealybugs were counted before the release of A. arizonensis . The parasitized mealybug mummies were recorded and parasitism rate was calculated after the scheduled releases as well.
The results of this study showed that parasitism rate at first (Kıyıboyu) and second (Balcalı) location started with 2% and 8%, and increased to 80% and 78% for two locations, respectively in Adana (Figure 5 and Figure 6 View Figure 6 ). In addition, the parasitism rate for two different locations (Tomuk and Merkez) in Mersin increased from 7% and 5% to 82% and 88%, respectively (Figure 7 and 8). Generally, Figure 5, 6, 7, and 8 showed that higher temperatures increased the effectiveness and parasitism rate of this parasitoid. Early releases of A. arizonensis (August, 2018) showed higher parasitism rate (above 75%), both in Adana and Mersin provinces. Differences between weekly parasitism rate were found statistically significant in Adana and Mersin in this study (Figures 5, 6, 7, and 8) (p <0.05).
There is no specific study about parasitism situation of A. arizonensis on H. rosa-sinensis in field conditions. However, A. bambawalei , the junior synonym of A. arizonensis , has been studied by some researchers in field conditions. Ram et al. (2009) studied the parasitism situation of A. bambawalei on cotton between 2008 and 2009 and found that parasitism rate of this parasitoid started to increase in August and continue until September (between 54.5%–76.6%) during the cotton growing season. Kumar et al. (2009) have studied natural parasitization of A. bambawalei against P. solenopsis , according to results of their study, parasitism rate of A. bambawalei changed between 46%–64% on cotton. Nahiyoon et al. (2016) also studied parasitism situation of A. bambawalei against P. solenopsis on 5 different plants between 2010 and 2011, and parasitism rate was between 79%–82% on cotton,
0 0 (07.08.2018) 18.08.2018 31.08.2018 5.09.2018 12.09.2018 Kıyıboyu / Adana
Weekly mean parasitism rate (%) Daily mean Temperature (°C) Daily Mean R.H. (%)
Figure 5. Parasitism rate of Aenasius arizonensis with Daily mean temperature and mean R.H.in 2018 for Kıyıboyu / Adana.
0 0 (07.08.2018) 18.08.2018 31.08.2018 5.09.2018 12.09.2018
Balcalı / Adana
Weekly mean parasitism rate (%) Daily mean Temperature (°C) Daily Mean R.H. (%)
0 0 (07.08.2018) 18.08.2018 31.08.2018 5.09.2018 12.09.2018
Tömük / Mersin
76% on tomato, and 74%–81% on China rose. Moreover, Solangi and Mahmood (2011) studied the parasitism rate of A. bambawalei in pesticide-free farms and found 79%–93% parasitism against P. solenopsis on cotton. Shete and Ram (2018) studied different host plants to determine parasitism rate of A.arizonensis and found 60% parasitism rate on H.rosa -sinenis in screen-house. Highest parasitism rate was observed as 65% on Abutilon indicum (Link) Sweet during their study. Li et al. (2020) used different host plant as food for P.solenopsis and released A. bamabawalei to determine effects of host plant on parasitism rate. The higher parasitism rate (55.6%) was obtained when P. solenopsis fed with H.rosa-sinensis . These studies showed that H. rosa-sinensis is one of the most important host plants of P. solenopsis and higher parasitism rate conceivably be obtained for A.arizonensis in suitable conditions.
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