Application of kairomons in increasing biological indices of the entomophagus Trichogramma evanescens
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GAVRILITSA, Lidia, NASTAS, Tudor. Application of kairomons in increasing biological indices of the entomophagus Trichogramma evanescens. In: Studii și Cercetări - Biologie , 2021, vol. 30, nr. 2, pp. 9-14. ISSN 1224-919X.
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Studii și Cercetări - Biologie
Volumul 30, Numărul 2 / 2021 / ISSN 1224-919X /ISSNe 2457-5178

Application of kairomons in increasing biological indices of the entomophagus Trichogramma evanescens


Pag. 9-14

Gavrilitsa Lidia, Nastas Tudor
 
Institute of Genetics, Physiology and Plant Protection
 
 
Disponibil în IBN: 20 octombrie 2023


Rezumat

Based on the results of research obtained in 27 variants of the Trichogramma evanescens’ search capacity, with attractive properties of Sitotroga cerealella at the age of cereal moth eggs (S. cerealella Ol.) of 24 hours, were built the following graphs in Optimclass: Factors and Results of the experiments; Efficiency chart; Performance of results; The graphs allowed us to determine the area of optimization, at the age of eggs of cereal moth (S. cerealella Ol.) of 24 hours, concentration 30%, egg weight 1 gr, exposure 5 minutes. The prolificacy of T. evanescens, at different combinations of conditions at concentrations of 10%, 20%, 30%, varied from 9.2-13.70 eggs/female, average –11.55 eggs/female for 24 hours. In the control, the prolificacy of T. evanescens, without treatment varied from 6.6-8.20 eggs/female, the average -7.6 eggs/female for 24 hours. The time taken by the females to reach the distance of 1.5m at the concentration of 10%, 20%, 30% at different levels of the factors the weight of the eggs (1, 2, 3g) and the exposure (5, 10, 15 min), varied from 20.42- 22.06-23.36 min, the age of the eggs of the cereal moth being 24 hours. The time traveled by females of the distance of 1.5m in the control varies from 40.72-41.82-42.84, the age of the eggs 24 hours, to the egg stage.

Cuvinte-cheie
protection, efficacy, Pests, pheromone, monitoring, biological indices, prolificacy