In the October 2019 issue of the Vegetable Crops Hotline, I referenced the new regulatory changes to herbicides containing the active ingredient paraquat. One of the new requirements is for closed system packaging. To quote the Environmental Protection Agency (EPA): “New closed-system packaging (is) designed to prevent transfer or removal of the pesticide except directly[Read More…]
Weed Management
As the production season winds down there are two weed-related news items that producers should be aware of: New Requirements for Users of Paraquat Herbicide. Paraquat dichloride is the active ingredient in products such as Gramoxone®, Devour®, Cyclone®, and Quik-Quat®. Earlier this year the Environmental Protection Agency (EPA) announced the following changes to paraquat requirements:[Read More…]
Dual Magnum® has had a special local needs (24C) label in Indiana for use on transplanted bell peppers and other vegetables for a number of years. Last week the label was amended to include additional small fruit and vegetable crops, including asparagus. The new 24C label is available on the National Pesticide Information Retrieval System[Read More…]
Three videos on in-row weeding tools (Finger weeder, Torsion weeder, Tine harrow) were developed at the Michigan State University Department of Horticulture. Each video is 20 minutes: introduces the tool, how it works, different models, show adjusting the tool in the field, and a short interview with a farmer who uses the tool. These videos can[Read More…]
This article provides more detailed information about this herbicide. How does Chateau® herbicide work Chateau® is a group 14 mode-of-action herbicide. Compounds in this group are most active on broadleaf weeds. Before Chateau® became available, no other preemergence herbicide with the same mode of action was labeled for use in watermelons and cantaloupes. The active[Read More…]
Chateau SW® herbicide now has a 24(c) special local needs label for cucurbits. This product is produced by Valent, but the label is held by the Indiana Vegetable Growers Association (IVGA). To obtain a label, one must be a member of the IVGA, pay an annual $100 processing fee, read and understand the ‘conditions for[Read More…]
On January 1, products containing >6.5% dicamba and an agriculture use label are now restricted use pesticides. In order to purchase these herbicides, buyers must carry a private or commercial pesticide applicator license. While dicamba herbicides have been on the market for over 50 years to control broadleaf weeds, the recent development of dicamba resistant[Read More…]
Recent dry weather raises concern about effectiveness of preemergent herbicides. Preemergent herbicides applied on the soil surface need to be moved into the soil where the target weed seeds are germinating (normally 1-2 inches deep) in order to be effective. The process normally requires 0.5 to 0.75 inch of water within a few days of herbicide application.[Read More…]
U.S. EPA approved a supplemental label to use Kerb SC® herbicide in leaf lettuce. Kerb® is a selective herbicide for control of certain annual grasses and broadleaf weeds. It can be used in direct seeded or transplanted leaf lettuce. Application can be made before or after planting but must be made prior to weed emergence.[Read More…]
The herbicide Chateau SW® is labeled for several vegetable crops including asparagus, mint, onion, and sweet potato. Recently, several growers asked Purdue University whether this product could be labeled in Indiana for cucurbit production. The answer is that Chateau® is not and will not be labeled for Indiana cucurbit production. We want to use this[Read More…]