Tomada de decisão de controle da traça-do-tomateiro através de armadilhas com feromônio sexual

Abstract

Decision making for integrated pest management of the South American tomato pinworm based on sexual pheromone trapsThe relationship between the productivity and the infestation of Tuta absoluta on tomato plants and adults caught in sexual pheromone traps was established to evaluate the effect of pest infestation on yield losses as well as on adults' density for decision-making improvement. Sexual pheromone traps were installed in three commercial fields of tomato in São Paulo State, Brazil (Mogi Guaçu, Tambaú and Sorocaba counties) with experimental plots of 18,000 plants each (1.5 ha). The presence of insects in the traps as well as the infestation on plants were evaluated twice a week on the same dates. The evaluations took place until harvesting. The productivity was expressed as marketable boxes of 24 kg/1000 plants. The relationship between tomato production and pest infestation on plants or pheromone traps was linear and negative. The adults' occurrence on traps and plant infestation showed an influence on yield losses. The action level of T. absoluta with sexual pheromone traps was 45 ± 19.50 insects daily.

Path analysis to evaluate the direct and indirect effects of climatic variables in the development stages of Tuta absoluta (Lepidoptera: Gelechiidae) in tomato (Solanum lycopersicum L.)

“…The extraction of the correlation matrix allows the selection of the most significant variables, which have a prominent role in the interpretation of the study proposal. Benvenga et al (2007) in a similar study, found a positive correlation between the number of insects and productivity. Bacci (2006) also observed this effect of correlations among climatic variables.…”

“…The observation of caterpillars in the leaves of the tomato is explained by the fact that they were changing mines in the leaf. We hypothesized, therefore, that temperature influences this behavior, because the time chosen for this monitoring was after 3 pm Benvenga et al (2007) reported a significant correlation between the number of traps and the increase in T. absoluta attack on tomatoes cultivated in a protected environment. Cabello et al (2010) do not always correlate with the number of adults caught in the traps.…”

Potential of Biological Control Agents AgainstTuta absoluta(Lepidoptera: Gelechiidae): Current Knowledge in Argentina

“…In Brazil, Benvenga et al (2007) found a good correlation between increases in pheromone trap captures and positively infested plants, and decreases in open field tomato production by the end of the season (expressed as marketable boxes of fruit per 1,000 plants). However, in greenhouse-grown tomatoes in Argentina, pheromone traps were useful only for early detection of the pest.…”

“…Other Common Names lesser tomato leaf miner, tomato leaf miner moth, tomato moth, South American tomato moth, tomato borer, tomato fruit moth (Vargas, 1970), polilla del tomate, traca-do-tomateiro, oruga minadora de hoja y tallo, polilla perforadora, cogollero del tomate, gusano minador del tomate, perforador de las hojas del tomate (CABI, 2011), South American tomato pinworm (Benvenga et al, 2007), gusano minador de la papa (Sanchez and Viana, 1969) Povolny (1964) described Scrobipalpula in 1964, and transferred absoluta to this genus. Becker (1984) included absoluta in Scrobipalpula in Heppner's Atlas of Neotropical Lepidoptera (Checklist, part I), but did not list it as a new combination.…”

Effect of Food Attractants and Insecticide Toxicity for the Control of Spodoptera frugiperda (Lepidoptera: Noctuidae) Adults

“…Toxic bait with food stimulants have been used for the identification and distribution of insect species, certification of a region or country as to the absence of a certain pest species (free area), and in pest species eradication and integrated management programs (Nascimento et al, 2000). Several attractions such as brown sugar, sucrose, corn hydrolyzed protein, fruit juices and wine vinegar are used in traps for insects monitoring and, when added to insecticides, they are recommended for the pests control, such as fruit flies (Nascimento et al, 2000;Gravena & Benvenga, 2003;Benvenga et al, 2007). Synthetic pheromones, such as Noctovi ® , have recently been launched and have proven to be important allies for sampling and pest control (Silva et al, 2016).…”