Generic “Zidua®” Zidua® herbicide has been registered for use in numerous crops in the United States for over a decade. It is a soil-applied, residual Group 15 herbicide containing the active ingredient pyroxasulfone. When Zidua® was registered for use in U.S. mint, the herbicide registrant (BASF) decided to not allow its use in the Midwestern…Read more about Mint Herbicide Updates: Generic “Zidua®”, Spartan®, Anthem® Flex[Read More]
Weed Management
Weed management can succeed or fail based on a number of factors. In the last issue of Vegetable Crops Hotline, we began assessing weed control and the effects of rainfall and soil moisture on weed management. In this article, we’ll take a deeper look into herbicide resistance and tolerance. Herbicide tolerance is the inherent ability…Read more about Take a Moment to Assess Your 2026 Weed Control – Part 2 – Resistance and Tolerance[Read More]
Earlier this summer, I wrote a Vegetable Crops Hotline article discussing the loss of Rely® 280 herbicide. That article can be found here: Rely® 280 Herbicide – Going, Going, Gone | Purdue University Vegetable Crops Hotline Rely® 280 was registered for use in cantaloupe, cucumber, summer squash, watermelon, tomato, and pepper in 2023 through two…Read more about Forfeit® 280 Now Registered For Use In Select Vegetable Crops In Indiana[Read More]
About a third of the farmer phone calls and texts I receive as a weed science Extension specialist center around a lack of weed control in vegetable crops. The lines, “What went wrong?” and “What do I do now?” generally follow. As the summer starts to give way to fall, now is a good time…Read more about Take a Moment to Assess Your 2026 Weed Control – Part 1 – Rainfall[Read More]
Days ago, the Office of the Indiana State Chemist (OISC) approved expanded label language allowing an over-the-top application of Dual Magnum® herbicide on pumpkins in Indiana. This change follows extensive research conducted in 2021 across 11 sites in 10 states to confirm jack-o’-lantern pumpkin crop tolerance to this application. Full results from that research can…Read more about Dual Magnum® Herbicide Now Labeled Over-The-Top in Indiana Pumpkins[Read More]
As of January 1, 2025, Chateau® SW herbicide is no longer registered for use in melon crops in the state of Indiana. While some growers are aware of this development, others are not. The following article discusses the background on Chateau® SW use in melons and addresses some questions growers may have. What is Chateau®…Read more about Chateau® SW Herbicide No Longer Registered for Melons in Indiana[Read More]
In 2023, BASF registered Rely® 280 for use in cantaloupe, cucumber, summer squash, watermelon, tomato, and pepper. The registration occurred as two separate supplemental labels- one for cucurbits and one for fruiting vegetables. Both supplemental labels were set to expire in December of 2025. These supplemental labels allowed for the use of Rely® 280 as…Read more about Rely® 280 Herbicide – Going, Going, Gone[Read More]
Common names: common waterhemp, tall waterhemp Latin name: Amaranthus tuberculatus Family: Amaranthaceae (pigweed family) General description and identification Waterhemp is an upright, tall, summer annual herbaceous plant. It is native to the United States and has historically been found in waterways and floodplains. Today, waterhemp is often found in disturbed habitats, such as agricultural fields….Read more about Weed Spotlight: Waterhemp[Read More]
Weeds are one of the most persistent and costly challenges in agriculture. Yield losses due to weeds can be severe, and weed management options are often limited, especially for organic and small-scale specialty crop growers. While many small-scale producers rely on hand-weeding or tillage, there are alternative tools that can improve weed control and reduce…Read more about Weed Management Methods for Small Farms[Read More]
Across the state of Indiana and the country, the first pumpkin and winter squash plants of the season are popping up out of the ground. It is a time of great anticipation and usually triggers a series of phone calls and emails to my inbox. Below, I address some of the frequently asked questions about…Read more about Pumpkin Weed Management FAQs[Read More]