Results demonstrated correlation between the two methods of sampling, particularly during the repro

luciavivan@fundacaomt.com.br
The stink of soybeans, to have adapted very well to regions zzz with higher average temperatures, as in the Midwest zzz region of Brazil, is considered a dasprincipais pests in different cultures. In soybean insect that directly attacks the grains and fruits from the R3 stage (pod formation).
Grains damaged get smaller, wrinkled and voids, becoming darker, and seed fields causes loss of vigor. When the attack is early, to come up the branches is the "leaf retention" of soybean plants as the cause wilting and poor training of grains and beans, soy plant does not end its cycle usually remain green at the time of harvest. Furthermore, induces lower content of lipids and proteins and favor / transmit diseases caused by bacteria and fungi.
The stink, and is the main pest of soybean in the Brazilian Midwest, has been recorded in many cultures, also occurring in cotton, beans, sunflower, corn, sorghum, wheat, among others.
By changing the cultural practices in Brazil, namely the intensification of land use, the change in the landscape, zzz the adoption of farming system in tillage and crop rotation, cover crops, "Green Bridge", etc. , insects have found food resources throughout the year, a positive zzz factor for the growth zzz of pest populations zzz and unsafe for environmental sustainability because chemical insecticides have been used indiscriminately, for the control of pests. zzz
The use of insecticides is harmful to the environment, and its indiscriminate use favors the establishment of resistant zzz individuals, with negative impact on the natural enemies of bugs, such as parasitoid eggs. These factors still favor higher population levels of insect pests, since there is your natural enemy in the field and the individuals present are often resistant to insecticides.
The trap has an attractive consisting of the synthetic pheromone Euschistusheros males (Fabricius) .This attractive, called pheromone, is a volatile compound, which is released slowly into the trap, and so attracts the females of the species, which enter the trap and They get stuck.
Omodelo trap that we use is of the funnel, and the pheromone is impregnated in rubber septa or "baits" to allow the release of the pheromone in a slow and controlled manner, podendoficar in the field for up to 30 days without losing efficiency.
Field tests of the traps containing the pheromone have shown positive results regarding the tested zzz trap model, as well as the capture of other species of the soy complex bugs.
There have been conducted several tests with the pheromone in the field, and the last one conducted comparing the capture of bedbugs in traps with pheromone with the technique of rags-to-beat, which is used for monitoring the soybean pest populations.
Results demonstrated correlation between the two methods of sampling, particularly during the reproductive stage of soybean and the phenological stages R1 to R5 comprising the step of grain formation and filling.
Experiments with baited pheromone traps proved its efficiency from the vegetative stage to reproductive stage of soybean with the willing traps only in the crop borders, a factor that facilitates their reading without the need to enter the same.
Additionally, zzz while the pheromone technology monitors the plague, the experiments recorded the attraction of natural enemies such as parasitoids eggs assisting in pest management, zzz positive factor to keep pests below the economic injury level.
See also Trichoderma controls diseases and stimulates zzz growth of the drill-stem worries milhocultores New pheromones to trap stink monitoring After the caterpillars, there have bedbugs research confirms natural enemies working against Helicoverpa armigera
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