Browsing by Author "Volosciuc, Leonid"

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    Controlul dăunătorilor culturilor agricole prin utilizarea dispozitivelor de atragere și sterilizare a adulților
    (CEP USM, 2024) Gorban, Victor; Volosciuc, Leonid
    The discovery of sex pheromones of pest insects and their use in pheromonal traps for pest monitoring led to the development of the self-sterilizing method of pest control. This method consists in attracting males into a pheromone trap treated with a chemical or biological sterilizing agent. The male accumulates this sterilizing agent and passes it on to the female at the moment of copulation. This agent leads to the blocking of embryo development and as a result the female lays sterile eggs. This article describes construction schemes of electro-optical devices and non-electric devices developed for the sterilization of pests by various methods.
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    FORTIFICAREA PROTECȚIEI FITOSANITARE PENTRU REDUCEREA IMPACTULUI SCHIMBĂRILOR CLIMATICE
    (CEP USM, 2024) Volosciuc, Leonid; Josu, Veronica
    The application of scenarios and models developed by different international scientifc centers and experimentally approved (CsIRO Mk2, HadCM2 and eCHaM4) of climate change allows the development of surveys to determine the impact between crop plants and harmful organisms, which during the last two decades, have greatly exceed the initial scenarios, which creates especially gloomy forecasts. It becomes probable the penetration and selection of species and variations of pests and pathogens of diseases with a greater degree of damage, widening the area of spread, increasing the virulence and aggressiveness of the pathogen species, increasing the number of generations, which causes the loss of harvest and reduction of the productive potential of crops. In the strengthening of phytosanitary protection, the paradigm of plant health is promoted and the role of ecological agriculture and means of biological protection of plants determined.