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Bayer active in pre-management for silverleaf whitefly in Brazil
Apr. 23, 2015
The whitefly is a plague that generated huge losses on agriculture - even with up to 100% of losses in some crops, according to Embrapa. Predominantly present in drier regions and seasons, the incidence has grown rapidly in Bahia's Cerrado and represents great risks for the field. Because of the migration profile of the specie, and its quick population growth, it is fundamental for producers to prepare an integrated management with preventive actions and constant supervision.
In these visits by Bayer and research partners, management alternatives are introduced to farmers to reduce risks and losses. "We have reinforced the necessity of integrated management with respect to crop control as well as chemical control, " emphasizes Luis Corrêa, Insecticide Portfolios manager at Bayer CropScience.
When visitors get to the fields, the consultants usually find high populations of flies in all stages with up to 200 nymphs/plant and high pressure of adults. "Normally, producers start to combat (the flies) under these conditions. However, in several cases, at this stage we already have the start of sooty mold and loss of foliar areas, bringing direct losses to production," adds Rafael Barbiero, agronomist of market development at Bayer CropScience.
Farmers are oriented to begin management when there are between 10 and 15 nymphs per trefoil/plant. "In this stage, it is necessary to control nymphs and also the adults, so we recommend the insecticide Oberon® on nymphs and Connect® for the adults, making the combat a lot more efficient, reducing the losses," explains Barbiero.
In order to enhance the visits in each farm, farmers from the region are invited to be motivated and replicate the good practices to other producers, helping to control the silverlef whitefly in Bahia. The plague has grown in the region and advance for all over the Cerrado affecting not only soybean growers, but also kidney beans, cotton, among other crops. "The Bayer commitment is to continue to do technical visits, conferences, and field days to help farmers to implement a sustainable management to control diverse threats that generated big impacts in the region," completes Barbiero.
Source: AgroNews
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