Monitoramento da broca-pequena-do-fruto para tomada de decisão de controle em tomateiro estaqueado

Abstract

Monitoring the tomato fruit borer population for the control decisionThe relation between the number of plants with eggs and the number of tomato fruit borer adults trapped in sexual pheromone traps and, also, the influence of infestation on the tomato crop production were evaluated. Commercial tomato fields in Monte Mor, São Paulo State, were divided into plots for the installation of traps. With an interval of 3.7 days, the density of trapped adults and the fruit infestation with eggs were evaluated. The study was carried out between 2003 and 2007 seasons for crops in Summer and Winter cycles. The evaluations were carried out until the end of the harvest and commercial and discarded production were evaluated. The chemical pest control was carried out when the infestation reached 5% of plants with eggs on fruits. The population was more significant in Summer cycle crops. The increase of the number of males trapped in sexual pheromone traps corresponded to an increase in the infestation of eggs on fruits and infestation influenced positively the discarded production. The installation of the traps must be done before the flowering stage and the control should be performed about eight days after the registration of an average of 0.24 and 0.23 adult per trap per day for the summer and winter cycles, respectively.

Development and survival of Neoleucinodes elegantalis (Lepidoptera: Crambidae) on wild and cultivated solanaceae

“…According to these parameters, the less suitable wild host for N. elegantalis was jurubeba while scarlet eggplants was the cultivated host least accepted by the species. Tomatoes are the most attacked cultivated host by N. elegantalis (Miranda et al, 2005;Boiça Júnior et al, 2007;Benvenga et al, 2010;Arcanjo et al, 2021). The occurrence of successive tomato blooming favors the continuous availability of fruits to the larvae.…”

Tank mixture of pesticides and their effect over pest control

“…The tomato fruit borer was evaluated from the fruiting, with 5 plants per plot being sampled, observing the number of fruits with caterpillars input signals. The control level adopted was 5% of fruits with freshly hatched caterpillars or 1% for fully developed caterpillars (Benvenga et al, 2010).…”

Ensacamento de cachos de tomate visando ao controle das brocas-dos-frutos

“…É um dos grandes problemas da cultura, causando prejuízos que podem chegar a 50% da produção (GALLO et al, 2002). A população dessa praga é, comumente, mais expressiva durante o verão (BENVENGA et al, 2010).…”