Histological and Histochemical Changes by Clove Essential Oil Upon the Gonads of Spodoptera frugiperda (JE Smith) (Lepidoptera: Noctuidae) Alteraciones Histológicas e Histoquímicas Provocadas por el Aceite Esencial de Clavo de Olor en las Gónadas de Spodoptera frugiperda ( JE Smith ) (Lepidoptera: Noctuidae)

CRUZ, G. S.; TEIXEIRA, V. .; DE OLIVEIRA, J. W V.; TEIXEIRA, A. A. C.; ARAUJO, A. C.; ALVES, T. J. S.; DA CUNHA, F.M. & BREDA, M. O. Histological and histochemical changes by clove essential oil upon the gonads of Spodoptera frugiperda (JESmith) (Lepidoptera: Noctuidae). Int. J. Morphol., 33(4):1393-1400, 2015.SUMMARY: Spodoptera frugiperda is a polyphagous insect that causes economic losses to several crops in Brazil and is themajor obstacle to corn production. Researches focusing on alternative control, e.g. botanical products are expanding to offer a widevariety of molecules that interfere with different biological parameters of insect pests. Thus, this study tested the hypothesis that cloveessential oil affects the spermatogenesis, ovarioles histochemistry and the fertility of S. frugiperda. The results showed that clove essentialoil affects the gametogenesis of S. frugiperda ovarioles, reflecting negatively on its reproduction, proving to be a promising tool forcontrolling this pest.KEY WORDS: Fall armyworm; Spodoptera frugiperda ; Reproduction; Histochemistry; Histology; Syzygium aromaticum.