Open AccessASPECTS REGARDING MONITORING OF THE PEST TUTA ABSOLUTA (TOMATO LEAFMINER) ON TOMATO CROPS UNDER HIGH PLASTIC TUNNELS AND EFFICACY OF SOME INSECTICIDES TESTED FORITSCONTROL
Author(s) -
Gabriela Șovărel,
Simona-Ştefania Hogea
Publication year - 2020
Publication title -
romanian journal of horticulture
Language(s) - English
Resource type - Journals
eISSN - 2734-7664
pISSN - 2734-7656
DOI - 10.51258/rjh.2020.03
Subject(s) - tuta absoluta , gelechiidae , pest analysis , horticulture , biology , crop , pheromone trap , lepidoptera genitalia , toxicology , pest control , population , economic threshold , agronomy , botany , demography , sociology
Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is a pest native from SouthAmerica, which was first reported in Romania in 2009 (Satu Mare). Among thevegetable species, tomatoes are the main host of the pest, but can also be found onpotato, black nightshade (Solanumnigrum), eggplant, bell peppers and tobacco.Yieldlosses caused by Tuta absoluta can reach 100%, in the absence of adequate controlmeasures.Pheromone traps are a complementary method of this pest control,contributing considerably to reducing its population. The experiments were done in2020, in the area of influence of R.I.V.F.G. - Vidra, in the first cycle of crop, using thehybrids Sahmat F1 and Zadurella F1.The Delta traps with pheromone were placed in 2high plastic tunnels with tomatoes, from 2 different locations (Dobreni and Vărăști)and the number of captured adults and the frequency and intensity of the attack onfoliage and fruits were periodically recorded, between May and July.The number ofcaptured adults on the sticky plate which have 397,75 cm2, ranged in time, between 52 and482. Chemical treatments were also applied, at 7 daysintervals, to prevent the spreadof the pest and limit the damage caused by it. The average yields obtained werebetween 6.950 kg/m2 (farmer 1, Dobreni) and 8.270 kg/m2 (farmer 2, Vărăști).