Vol. 1, Issue 4 (2016)
Some ecological and behavioral aspects of the black parlatoria, Parlatoria ziziphi (Lucas) (Hemiptera: Diaspididae) and its parasites on mandarin trees
Author(s): Adnan Abdel-Fattah El-Sayed Darwish
Abstract: Ecological and behavioural studies of the black parlatoria, Parlatoria ziziphi (Lucas) and its parasites were carried out during two successive years (2014 and 2015) in Nobaria district, Beheira Governorate, Egypt. The obtained results revealed that the total population of alive stages had two generation yearly in April and October. The insect prefer to the existing leaves on the southern and eastern branches of mandarin tree. Middle stratum always harboured the highest population density of the insect, the upper stratum showed the lower population while an intermediate population was recorded in low stratum of mandarin trees. Aphytis lingnanensis and Encarsia citrine (Aphelinidae), were recorded as parasitoids of P. ziziphi.