Entomologists from the University of Grand Durados in Brazil found that patented attractants when mixed with small amounts of ordinary insecticides, significantly improve the fight against corn deciduous scoop.
This reduced the damage caused by sowing corn at all eight test sites in Mata Grosu-Du-Sul, in the Agricultural region SERRADO in Brazil.
The fight against the corn deciduous scoop (SPODOPTERA Frugiperda) is becoming increasingly difficult because of the increase in individual stability to insecticide and genetically modified Bacillus Thuringiensis (BT) plants.
In this study, the total method was tested by spraying the attractant Noctovi ®c metomyl insecticide.
Experiments were carried out on commercial corn fields, on cultures that do not contain BT and BT, during the two agricultural years (2018 and 2019) at eight sites distributed in three cities located in the south of Matu Grosu do Sul, Brazil.
The following six insecticide treatments were used: spraying continuous stripes every 100, 50 and 25 m; Periodic spraying every 25 m; control (without the use of insecticides); and spraying the entire area insecticide (positive control).
The food embarrass associated with the insecticide molecule was applied to the crop at the vegetative stages V1 and V3, and the size of the adult population was estimated and the level of damage to the leaves caused by caterpillars.
The use of a poison bait with strips with an interval of less than or equal to 50 m significantly reduced the percentage of damage to the plants, and the effect was stronger for the crops BT.
Scientists believe that the control of adult populations of the corn scoop may be better if the methods of attracting and destroying include in comprehensive corn pest control programs, in order to reduce the insecticide specifically for the second harvest of Brazilian corn by more than 90%.
The attractant was provided by the Environmental Agrotechnical Company ISCA, Inc., the United States, which develops a new generation of insect fighting agents for world agriculture, using the strength of Pheromones and other semi-cohemical substances secreted in nature by plants and animals that manipulate the behavior of targeted insect species.
ISCA has developed and manufactures this Noctovi product to distribute UPL in Brazil.
(Source: www.ccsenet.org).