Preliminary larvicidal effect of seed oil from Cleome arabica L. on fifth instar larvae of Schistocerca gregaria (Orthoptera: Acrididae)

Ahmed Ait aoudia; Abdellah Kemassi; Amel Herouini; Zakaria Taibaoui; Rima Derouiche; Nawal Bouziane; Rekia Cherif; Mohamed Didi Ould el hadj

doi:10.30550/j.azl/2022.66.2/2022-08-12

Autores

Ahmed Ait aoudia University of Ghardaia, Research Laboratory “Mathematics and Applied Sciences” https://orcid.org/0000-0002-5529-3862
Abdellah Kemassi University of Ghardaia, Research Laboratory “Mathematics and Applied Sciences” https://orcid.org/0000-0003-4101-8496
Amel Herouini University of Ghardaia, Research Laboratory “Mathematics and Applied Sciences” https://orcid.org/0000-0002-1446-4610
Zakaria Taibaoui University of Ghardaia, Research Laboratory “Mathematics and Applied Sciences” https://orcid.org/0000-0001-9386-3347
Rima Derouiche University of Ghardaia, Research Laboratory “Mathematics and Applied Sciences” https://orcid.org/0000-0002-4967-6680
Nawal Bouziane Research Laboratory “Ecosystem protection in arid and semi-arid zones”. Kasdi Merbah University https://orcid.org/0000-0002-4229-7266
Rekia Cherif University of Ghardaia, Research Laboratory “Mathematics and Applied Sciences” https://orcid.org/0000-0001-5259-3598
Mohamed Didi Ould el hadj Research Laboratory “Ecosystem protection in arid and semi-arid zones”. Kasdi Merbah University https://orcid.org/0000-0002-2860-6894

DOI:

https://doi.org/10.30550/j.azl/2022.66.2/2022-08-12

Palavras-chave:

Schistocerca gregaria, L5 larvae, seed oil, Cleome arabica, toxicity, Sahara

Resumo

In this present study, the toxicity of Cleome arabica L. (Capparidaceae) seed oils was tested on L₅ larvae of Schistocerca gregaria, Forsk. (Orthoptera-Acrididae). The forced administration of 60 ?L/individual of this vegetable oil leads to the death of all the treated larvae either before or after a few days of exuviation (imaginal moult). Signs of intoxication were observed a few hours after treatment, i.e. movement disorders, diarrhoea, inability to take food and weight loss. Male L₅ larvae seem more sensitive than female L₅; the mortality rates being around 90.91% and 36.36% respectively after 16 days. The TL₅₀ recorded in treated L₅ larvae is around 11 days.