Missouri Cotton News
August 2007

Delta Center Annual Field Day
The Annual Delta Center Field Day will be held on August 31 at the Lee farm east of Portageville. Tours will run from 9:00 a.m. until 2:00 p.m. The farm is located two miles south of Portageville and five miles east at the intersection of highways T and TT. Lunch will be provided.

Cotton Variety Test Field Day
It will be held on September 14, 2007. The tour will be at the Lee Farm east of Portageville. The leading varieties and promising new varieties are represented in trials. We will observe the silt loam trial and the Roundup Ready trial. The Roundup Ready varieties can be observed where Roundup was used. This will be followed by lunch. For those interested, after lunch we are planning a Soil and Water Management Field Tour. CCA credits will be applied for.

DD60’s and Cotman
Attached you will find the DD60’s for 2007 with comparisons to previous years. In this chart, the DD60’s started on May 1. The present recommendation of the Cotman method of terminating insecticide application says the bolls are past injury by boll feeding insects when 350 DD60’s are reached after cutout, 5 nodes above white flower. The 350 DD60’s from cutout can be determined by checking the chart for the DD60’s of the cutout date. Subtract this number from the present number of DD60’s and this will yield the number of DD60’s received since cutout. Weather data can be found on our website at www.aes.missouri.edu/delta

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