Lethal and Histological Effects of Neonicotinoids Insecticides on Apis mellifera (Hymenoptera, Apiadae) | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 7, Volume 10, Issue 11, November 2019, Page 543-548 | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2019.67792 | ||||
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| Authors | ||||
Asmaa Abd Alla  ; Reham A. M. EL-Wassef
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| Dept. Econ. Entomology and Insecticides, Fac. Agric., Cairo Univ., 12613 Giza, Egypt | ||||
| Abstract | ||||
| Using of Neonicotinoids insecticides affect honeybees that visit field and horticultural crops for collecting nectar and pollen. Therefore, this investigation aimed to study the effect of three neonicotinoids insecticides (Imidacloprid, Acetamiprid and Dinotefuran,) with three (recommended, half, and quarter) doses on mortality rate of adult bees, also their effect on midgut tissues under laboratory conditions. The obtained results showed that a highly mortality% was recorded in Dinotefuran 100% after 48hr, while Acetamiprid revealed the lowest mortality% as 56, 51 and 33% with recommended, half and quarter dose, respectively. Imidacloprid recorded 81, 79 and 74% mortality for recommended, half and quarter dose, respectively. On the other hand, there was mild vacuolar degeneration with nucleus pyknosis in some cells in the lining mucosal epithelium of minimum concentration half recommended dose of Imidacloprid. Also, there was moderate proliferation of cells lining midgut with increasing number of goblet cells of the quarter recommended dose of Acetamiprid.It could be concluded that Dinotefuran is very dangerous and lethal on bees. | ||||
| Keywords | ||||
| Apis mellifera; Imidacloprid; Dinotefuran; Acetamiprid; midgut epithelial tissue; mortality%; histological effects | ||||
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