Abstract
The Experiment was carried out to measure the effect of four natural plant oils (namely: Cinnamonium zeylanicum L., Syzygium aromatic L., Citrus aurantium amara, and Lavandula spica) on controlling the greater wax moth and their ability to persist. The methodology included collecting and rearing the greater wax moth under laboratory conditions to be able to isolate the target tested stages. The immature stages (eggs and larvae) of the experiment moth were exposed to fumes of tested oils (50 µl/500 ml) to calculate hatchability and mortality percentage. The results were clear that fumes of C. zeylanicum and S. aromatic were caused 100% unhatching eggs after zero time as the same recorded by comparable compound (paradix) and able to persist their effect at the closed and limited zone for 60 days. On another side, C. zeylanicum and S. aromat were affected on last larval instars and emerged adults. The accumulative effect was appeared in the case of treatment by C. zeylanicum which was caused sterility to emerged adults and reduced eggs deposition to zero. The data indicated that some natural product compounds could be used as an alternative way of control insect pests.
Highlights
The honeybee is mentioned in holly books as an example of a beneficial insect group and with the time the science was confirmed that they played an important role in increasing the yield of various crops besides their useful produces such as propels pollen, royal jelly, bee wax, and honey
After eggs are laid in the hive, the larvae burrow through the honeycombs and cause massive destruction, in addition to trapping emergent bees
Cracks and crevices should be sealed so that adult G. mellonella cannot lay their eggs there
Summary
The honeybee is mentioned in holly books as an example of a beneficial insect group and with the time the science was confirmed that they played an important role in increasing the yield of various crops (as pollinator) besides their useful produces such as propels pollen, royal jelly, bee wax, and honey. The honeybees infected by some pests such as the greater and lesser wax moth are a highly destructive insect that attacks and destroys beeswax combs especially those in storage and can cause substantial losses to combs, hive materials all over the world (Crane, 1990; NBN Atlas, 2017). After eggs are laid in the hive, the larvae burrow through the honeycombs and cause massive destruction, in addition to trapping emergent bees. This leads to the destruction of honeycombs and subsequent deterioration of the weakened colonies (Kwadha et al, 2017). To prevent or manage infestations, cultivators are encouraged to maintain sanitary conditions for their bees, as it will keep the colony strong so they can keep G. mellonella out. Testing fumes of plant volatile oils was paid attention by many authors ( Sharaby et al, 2009; Moawad et al, 2015; Ursani et al, 2014; Moawad & Sadek, 2018)
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