Category Archives: Peanut-Cotton Infonet

EPA decision on chlorpyrifos

The head of the EPA, Scott Pruitt, signed an order last night denying the petition to ban chlorpyrifos (Lorsban). This decision will allow peanut growers in our area the continued use of this insecticide for the foreseeable future, perhaps until 2022 when the EPA is required to reevaluate safety of this product. The environmental group that filed the 2007 petition to ban chlorpyrifos has announced its plans to appeal the decision.  More information can be found here – https://www.epa.gov/newsreleases/epa-administrator-pruitt-denies-petition-ban-widely-used-pesticide-0

Virginia Frost Advisory

The Virginia Frost Advisory predicts that a frost is expected next Monday morning (10/19) for Suffolk, Capron, Waverly, Skippers, and Lewiston.  A copy of the report can be downloaded below. For up-to-date frost advisories for the region, see the Peanut-Cotton Infonet (http://webipm.ento.vt.edu/cgi-bin/listfrost).

Frost Advisory 10-12-2015

Peanut Disease Update

Recent warm, wet weather has been optimal for both plant growth and fungal disease development in peanut and other crops. Early planted peanut in southeastern Virginia is near the R3 (beginning pod) stage, so it is almost time to make the first fungicide application for leaf spot. The first spray can be delayed until two weeks after R3 on Bailey. Last effective spray dates for leaf spot can be found on the Virginia Peanut-Cotton Infonet website.

Sclerotinia blight risk in based on temperature, rainfall/humidity, and crop growth. Temperature and rainfall have been conducive for Sclerotinia blight, but Sclerotinia risk is considered low to moderate prior to canopy closure. However, rapid growth of the peanut crop in some fields has resulted in thick canopies that provide the moist micro-climate necessary for disease development. Thus, now is the time to start scouting for Sclerotinia blight in peanut fields, especially if vines are within six inches of touching. If the wet weather continues, Sclerotinia blight risk is expected to be high within the next couple of weeks.

The Virginia Peanut-Cotton Infonet has moved (back)

InfoNetMap

The Virginia Tech Tidewater AREC (TAREC) maintains the Peanut-Cotton Infonet which provides growers in the region with daily weather data (e.g. temperature, rainfall), peanut leaf spot and Sclerotinia advisories, peanut heat units, cotton degree days, and a frost advisory. Four weather stations located in Suffolk, Capron, Skippers, and Waverly are maintained by the TAREC Plant Pathology program. These weather stations transmit data to a computer at the Tidewater AREC, and the data is used to run fungicide advisory models. Data are available on the Virginia Peanut-Cotton Infonet website (http://webipm.ento.vt.edu/cgi-bin/infonet1.cgi).

The data and information available here include:

Maximum, minimum, and average air temperatures
Average soil temperature at a 4 inch depth
Daily and accumulated (from May 1) peanut heat units
Daily and accumulated (from May 1) cotton degree-days
Daily and total seasonal (from May 1) rainfall
Last effective spray date for peanut leaf spot
Sclerotinia blight risk
Frost advisory (from September 25th to completion of harvest)

In addition to the data provided on the Infonet, current information on peanut diseases in the region and disease management recommendations will be provided here on this blog, so be sure to check back for updates.

The Peanut-Cotton Infonet has moved

InfoNetMap

The Virginia Tech Tidewater AREC (TAREC) maintains the Peanut-Cotton Infonet which provides growers in the region with daily weather data (e.g. temperature, rainfall), peanut leaf spot and Sclerotinia advisories, peanut heat units, cotton degree days, and a frost advisory. Four weather stations located in Suffolk, Capron, Skippers, and Waverly are maintained by the TAREC Plant Pathology program. These weather stations transmit data to a computer at the Tidewater AREC, and the data is used to run fungicide advisory models. Data are available on the Virginia Peanut-Cotton Infonet website (http://webipm.ento.vt.edu/cgi-bin/infonet1.cgi).

The data and information available here include:

Maximum, minimum, and average air temperatures
Average soil temperature at a 4 inch depth
Daily and accumulated (from May 1) peanut heat units
Daily and accumulated (from May 1) cotton degree-days
Daily and total seasonal (from May 1) rainfall
Last effective spray date for peanut leaf spot
Sclerotinia blight risk
Frost advisory (from September 25th to completion of harvest)