Appearance of pomegranate butterfly Deudorix livia Klug (Lepidoptera: Lycaenidae) on growth stages of different host plants and its fluctuation on pomegranate Manfaloty Cultivar in Assiut Governorate, northern upper Egypt [electronic resource]
Language: English Summary language: Arabic Description: 174 - 188 pOther title:- تواجد أبي دقیق الرمان Deudorix livia Klug (Lepidoptera: Lycaenidae) اثناء مراحل النمو المختلفة لعوائله النباتیة وتذبذب أعداده على صنف الرمان المنفلوطي في محافظة أسیوط، شمال صعید مصر [Added title page title]
- Assiut journal of agricultural sciences, 2023 v. 54 (1) [electronic resource]
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Main | ART AJAS V54 No1 12 (Browse shelf(Opens below)) | Available |
Includes bibliographic reference
Relations between the incidence of mature and immature stages of pomegranate butterfly, Deudorix (Virachola) livia Klug (Lepidoptera: Lycaenidae) and some host plant phenology growth stages was studied. Two host plant species i,e., sweet acacia, Acacia farnesiana L., and pomegranate, Punica granatum L were selected. Pomegranate butterfly eggs population fluctuation on Manfaloty pomegranate cultivar was encountered during 2020 and 2021 under climatic factors [Maximum (MaxT) and Minimum (MinT) Temp. in Celsius degree (°C), Relative humidity (RH %), and Wind Speed (km/hr)]. Data revealed that the sweet acacia was the most preferred for D. livia and appeared as the main host plant during the absence of the targeted stage of other host plants. Eggs and adults were first recorded after 2 and 7 weeks from fruit setting on sweet acacia in 2020 and 2021, respectively. On pomegranates, the previously mentioned
stages appeared after 3 weeks of fruit formation in both seasons. October was the most preferred month for eggs deposition in both seasons because eggs averages were highly increased, and this was the damaging time for pomegranate fruits.
The populations of eggs showed three peaks in 2020 and two in 2021. The
correlation coefficient between the average numbers of eggs and maximum wind speed was negative and highly significant (r= -0.36776, P <0.0001) in 2020, meanwhile in 2021 still negative with an insignificant effect (r= -0.10447, P= 0.1410). In conclusion, determining pest peaks are important to establish a
control program before peak occurrence or after infestation reaches the economic threshold levels. This will be important to initiate control strategies to prevent this insect pest from laying eggs on pomegranate fruits.
Keywords: Deudorix livia, Pomegranate, Sweet acacia, plant phenology.
Summary in Arabic
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