Histopathological change in the testis of the desert locust Schistocerca gregaria (Forskal) induced by the IGR Consult and Lufox

Bioactivity of Moringa oleifera and Ruta angustifolia Oils on Spodoptera littoralis (Boisd.) Moths’ Vitality

“…Also vacuolation of the testes and absorption of sperm bundles also represent the damage of germ cells was most prominent in these organs. Bakr et al (2010) in adult males developed from treated one day old of the 5 th nymphal instar of Schistocerca gregaria with LC50 of Consult. The testicular follicles showed damage in zones of reduction and necrosis appeared in many spermatids and spermatozoa.…”

Effects of the juvenile hormone mimic NC-184 on the development of the reproductive organs and mating behaviour of nymphs of the desert locust, Schistocerca gregaria (Orthoptera: Acrididae)

“…For instance, feeding them with JHM (hydroprene) results in an increase in the size of male accessory glands in the red fl our beetle, Tribolium castaneum Herbst (Parthasarathy et al, 2009). In S. gregaria, application of the insect growth regulator Consult (chitin synthesis inhibitor) results in the degeneration of spermatogenesis (Bakr et al, 2010). Also in S. gregaria females, treatment of their eggs with the juvenile hormone analogue pyriproxyfen inhibits their embryogenesis (Vennard et al, 1998).…”

The association of the development of the internal reproductive organs of male desert locusts, Schistocerca gregaria (Orthoptera: Acrididae), with age, phase and the effect of exposure to pheromones

“…Thus, it is well studied. For example, male reproduction in this locust has been examined in terms of mating and sexual behaviour (Pener, 1967;Inayatullah et al, 1994;Seidelmann & Ferenz, 2002;Golov et al, 2018), testis development (Tobback et al, 2011, van Wielendaele et al, 2013, sperm storage (Norris, 1954;Hiroyoshi et al, 2021a), spermatogenesis (Das et al, 1965;Cantacuzène et al, 1972;Coggins, 1973;Jones, 1978;Bakr et al, 2010), sperm transfer (Pickford & Padgham, 1973;Boerjan et al, 2012;Dushimirimana et al, 2012) and accessory glands (Odhiambo, 1969(Odhiambo, , 1970Avruch & exposed to fi ve mature (yellow) gregarious virgin adult males or fi ve male gregarious nymphs (4 th or 5 th ) (referred to as donors) in two-chamber aluminum cages (15.5 cm × 15.5 cm × 31 cm height) with a sliding glass front at 32 ± 2°C, which allowed the insects to smell the donors (no visual or tactile contact possible). The donors were kept in the top part of the cage and, the recipients in the bottom part so that they could more easily perceive the volatiles emitted by the locusts in the upper chamber.…”