Biological Control of Queresas (Fiorinia fioriniae Targioni Tozzetti) in Avocado Crops in the Inter-Andean Valley of Llacce, Province of Acobamba

Abstract

The fruit market demands increased production of high-quality avocados (Persea americana Mill), with a lower environmental impact and minimal use of chemicals. Therefore, the effective dose of the native fungus was determined, a suitable formulation as a bioinsecticide for the control of the fungus Fiorinia fiorinae (Targioni Tozzetti) in avocado crops. The research was conducted from April to December 2022 on a farm in the Llacce Peasant Community, in the district and province of Acobamba, department of Huancavelica. The (DBCA) was established with repeated averages over time, with six treatments and six replicates per treatment. For each replicate, data were collected weekly from thirty-six replicates of the avocado crop, from 30 to 180 days after flower induction. The treatments were (Beauveria bassiana native) and (Metarhizium anisopliae native). The treatments that had the highest percentage of incidence in preventing kerases were T3 (Beauveria bassiana native) 250 mg at 30 % followed by T4 (Metarhizium anisopliae native) 200 mg at 25 % likewise followed by T6 (Metarhizium anisopliae native) 200 mg at 25 % and the lowest incidence was T5 (Metarhizium anisopliae native) 150 mg at 10 % While the lowest incidence was T2 (Beauveria bassiana native) 100 mg at 5 % as well as T1 (Beauveria bassiana native) 100 mg at 5 %. Finally, the incidence of the entomopathogenic fungus varied between 5 % to 10 % and 25 to 30 % in the different samples.