Abstract
The increasing use of chemical insecticides has adversely effected the environment and increased insect resistance. Biopesticides have been noticed the potential to be an excellent alternative to chemicals to reduce the negative impacts to human health and the environment. Tomato (Lycopersicon esculentum) is the second most important vegetable crop worldwide due to its nutritional importance. The effect of NOVOSECT SC21® (0.5 L/200 L), ATO BED BUGS® (1 L/200 L) and NEO-BOOST® (1 kg/200 L) against Tuta absoluta, Liriomyza trifolii and Alternaria solani was studied. A complete randomized block design (CRBD) was used with three replications, three treatments and one control in Hrajel area in Lebanon in the summer of 2020. We evaluated the level of infestation and larval mortality level of Tuta absoluta, Liriomyza trifolii and Alternaria solani infection 24, 48 and 72 hr after the application. Results showed that NOVOSECT SC21® (Mix of metabolites of the Bacillus F.D. 777) was the most efficient in decreasing the infestation and inducing larval mortality level of T. absoluta and L. trifolii and the fungal infection induced by A. solani with significant difference with time, followed respectively by ATO BED BUGS® and finally NEO-BOOST®.
Highlights
Vegetables are one of the most important crops in agriculture and tomato (Lycopersicon esculentum) is considered as one of the most cultivated and consumed vegetable crops in Lebanon, with a production of 300,157 tons in 2018 and a cultivated area of 3700 ha according to IDAL (Investment Development Authority in Lebanon) (IDAL, 2020)
Two hundred and fifty-two tomato plants were evaluated for the efficiency of the biopesticides ATO BED BUGS®, NOVOSECT SC21®, and NEO-BOOST® (Powdered Peracetic Acid & Bio Silicate) in controlling two major pests encountered in Mount Lebanon: Tuta absoluta and Liriomyza trifolii, and the fungal disease Alternaria solani
Our research indicates that NOVOSECT SC21® and ATO BED BUG® has potential for controlling Tuta absoluta and Liriomyza trifolii by reducing the infestation level and increasing the larval mortality
Summary
Vegetables are one of the most important crops in agriculture and tomato (Lycopersicon esculentum) is considered as one of the most cultivated and consumed vegetable crops in Lebanon, with a production of 300,157 tons in 2018 and a cultivated area of 3700 ha according to IDAL (Investment Development Authority in Lebanon) (IDAL, 2020). The intensive use of chemical insecticides have serious drawbacks, including reduced profits from high insecticide costs, destruction of insect pest’s natural enemy populations, the build up of insecticide residues on tomato fruit. The high use of chemical insecticides can adversely affect the environment and increase the insecticide resistance to many insects, including Tuta absoluta and Liriomyza trifolii, which are among the most important tomato pests in Mount Lebanon, causing severe problems to tomato crops and significant losses in production that could reach 100% if not controlled (Devine et al, 2007; Giorgini et al, 2018; MOA, 2016). The need to adopt new technologies and good agricultural practices should be taken into consideration in order to lower the production costs, lower the insecticide residues in the product, protecting the environment, and obtaining effective insect control (IDAL, 2020). Natural products are an excellent alternative to synthetic pesticides as they help reducing their negative impacts on human health, while protecting the environment and jas.ccsenet.org
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