Effectiveness of a Biological Insecticide Derived from Scorpion Fish Offal against the Chickpea Weevil

Laribi-Habchi, Hassiba

doi:10.4172/2155-9821.1000148

Cited by 2 publications

References 18 publications

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Onion thrips Thrips tabaci [Thysanoptera: Thripidae] reduces yields and THC in indoor grown cannabis

McCune

Murphy²,

Eaves

et al. 2020

Preprint

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Cannabis (Cannabis sativa L. (Rosales: Cannabaceae)) is a newly legalized crop and requires deeper insights on its pest communities. Here we identified the thrips species affecting indoor grown cannabis in Canada and tested its impact on plant yield. We used three levels of initial infestation (0, 1, and 5 thrips) on individual plants grown in two mediums: normal substrate or substrate containing the biostimulant Bacillus pumilus, Meyer and Gottheil (Bacillales: Bacillaceae). We found that the onion thrips, Thrips tabaci (Lindeman) (Thysanoptera: Thripidae) is proliferating in indoor grown cannabis. Furthermore, our results showed fresh yields were higher for the plants that initially received zero thrips compared to those who initially received five thrips. Moreover, the biostimulant had only a marginal effect on the reduction of the thrips' impacts. We highlight the importance for growers to carefully monitor thrips infestations in indoor grown cannabis. Finally, we emphasize the need for more research regarding the impact of pests on cannabis yields and safe means of pest control for this strictly regulated crop.

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Onion thrips Thrips tabaci [Thysanoptera: Thripidae] reduces yields and THC in indoor grown cannabis

McCune

Murphy²,

Eaves

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

Efficacy of Crude and Purified Chitinases (SsChi50) Extracted from Offal Red Scorpion Fish in Biological Control of Chickpea Weevil (C allosobruchus maculatus L.)

Laribi-Habchi

Biche

Drouiche

et al. 2014

Journal of Food Processing and Preservation

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In the tropical zone, Callosobruchus maculatus (Coléoptere: Bruchidae) is one of the most important pests of seeds of chickpea (Cicer arietinum). The infestation starts in the fields and continues in the stocks where the damage can be considerable in the absence of any protective measures. The importance of this damage justifies the development of appropriate control methods. In the context of biological control as an alternative to chemical control, the crude and purified chitinases SsChi50 extracted from the red scorpion fish offal were tested for their possible role as insecticide on the stored-product insect Ca. maculatus at various doses, respectively (3, 6, 9, 12, 15, 18, 21 and 24%), (1, 1.5, 2, 2.5 and 3%). The biotests were conducted in laboratory conditions (temperature and relative humidity) maintained at 28C and 75%, respectively. The results showed that the crude and purified chitinases (SsChi50) tested possess insecticidal activity against Ca. maculatus. The crude and purified chitinases at doses of 24 and 3%, respectively, exhibited great biocidal power against insects as we experienced 100% mortality after only 1 h of exposure to treatment. The 50% lethal dose (LD) at each time of exposure was estimated. This allows us to move forward so that the crude and purified chitinases extracted from the red scorpion fish offal tested can be used as bioinsecticide for the control of Ca. maculatus populations of pests of stored foodstuffs. PRACTICAL APPLICATIONSWe develop a novel bioinsecticide which consists of crude and purified chitinases extracted from fish offal (scorpion fish). The biotests conducted in laboratory conditions revealed that this crude and purified chitinases extract has 100% insecticide activity after 1 h contact at doses of 24 and 3%, respectively. The originality of this work therefore lies in the fact that there are no studies on the use of chitinases extracted from marine biomass as bioinsecticide.

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Effectiveness of a Biological Insecticide Derived from Scorpion Fish Offal against the Chickpea Weevil

Cited by 2 publications

References 18 publications

Onion thrips Thrips tabaci [Thysanoptera: Thripidae] reduces yields and THC in indoor grown cannabis

Onion thrips Thrips tabaci [Thysanoptera: Thripidae] reduces yields and THC in indoor grown cannabis

Efficacy of Crude and Purified Chitinases (SsChi50) Extracted from Offal Red Scorpion Fish in Biological Control of Chickpea Weevil (C allosobruchus maculatus L.)

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