Histopathological studies of red palm weevil Rhynchophorus ferrugineus, (Olivier) larvae and adults to evaluate certain nano pesticides.

A Y Abd El-Fattah,A S Abd El-Wahab,Z A Jamal,A A El-Helaly

doi:10.1590/1519-6984.227621

A Y Abd El-Fattah, A S Abd El-Wahab + Show 2 more

Open Access

https://doi.org/10.1590/1519-6984.227621

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Abstract

Rhynchophorus ferrugineus (RPW) (Olivier) (Coleoptera: Curculionidae) is one of the most destructive pest of palm according to dozens of literature, a lot of effort have been made since three decades up to date to solve this problem, one of newest solution raised is using nano pesticides. Imidacloprid and Chloropyrophos and their nano form were tested against 10 days-old larvae and newly emerged adults of the red palm weevil. The pesticides had toxicological and pathological effects on Rh. ferrugineus larvae and adults. The toxicity effect of nano chloropyrophos was more than others. The damage included vaculation of cytoplasm, analyzes and destroyed nuclei of the epithelial cells. The larvae were more sensitive in the total damages in comparison with adults. This investigation is the first record to the histopathological effects of nano pesticides.

Highlights

The digestive system is an important device in the body where it absorbs and digests food
Rhynchophorus ferrugineus (RPW) (Olivier) (Coleoptera: Curculionidae) is one of the most destructive pest of palm according to dozens of literature, a lot of effort have been made since three decades up to date to solve this problem, one of newest solution raised is using nano pesticides
Imidacloprid and Chloropyrophos and their nano form were tested against 10 days-old larvae and newly emerged adults of the red palm weevil

Summary

Introduction

The digestive system is an important device in the body where it absorbs and digests food. In 1986 the pest was first record in united Arab of Emirates and Oman (El-Ezaby et al, 1997; Kaakeh, 2006), Kingdom of Saudi Arabia in 1987 It reached to Egypt in 1992through transportation of infested palm (Cox, 1993). Recently it was moved to Tunisia in 2011 where it was record in phoenix canariensis (Habib et al, 2017) The risk of this pest in its hidden behavior, which makes it difficult to detect the injury in its early stages (Sayed et al, 2016; Al-Dawood et al, 2013). In this investigation we made further studying their effect on the tissues and cells of the digestive system of R. ferrugineus in order to explain and understand the mechanism of damage

Samples

Treatment

Histological study

Results and Discussion