Brazil cotton growers on nematode alert
Brazilian cotton growers have been put on alert to the threat of nematode infestations, media report. Almost a quarter (23%) of the cotton fields surveyed by agricultural cotton research corporation Embrapa Algodão in Mato Grosso state are affected by the aggressive and rapidly multiplying cotton root-knot nematodes (Meloidogyne incognita). Losses in some regions are reported to hit 40%. Meanwhile, some 15% of surveyed soil samples revealed the presence of soybean cyst nematodes (Heterodera glycines) largely in cotton following soybean cultivation. The consensus is that it is not a cotton pest.