Survey Weeds: First Open Boll to Preharvest
Continue surveying your fields during the growing season for the presence of summer annual weeds. Note the effectiveness of previous weed management practices at this time.
Survey each field separately. Adjacent fields often have very different weed populations due to different cropping histories or soil types. Keep accurate survey records for use with future growing seasons. Since many herbicides are effective only on germinating weeds, it is useful to know which species are present before they grow. Conduct weed surveys regularly to find out which weeds are present and how their populations are changing.
How to survey your fields: