Big Wheel Ruts, Big Economic Losses

Jul 23, 2020

Excessively wet field conditions at harvest throughout the North Central and upper Midwest regions resulted in many fields with deep wheel-traffic compaction as evident by deep ruts from combines and grain wagons. Although this is a common occurrence during years with excessive moisture at harvest, the subsequent economic costs are rarely, if ever, projected for large regions.

In an article recently published in Agricultural & Environmental Letters, researchers review the scientific literature on the persistence and quantity of yield reductions due to deep wheel-traffic compaction and then project the state-level economic costs to farmers that may be expect for the upcoming 2020 and 2021 crops in North Dakota and Minnesota.

The researchers estimate a median of 21% yield reduction to the upcoming 2020 and 2021 corn and soybean crops on lands impacted by deep wheel-traffic compaction during the 2019 harvest. Based on these reductions, they project a minimum economic cost of $587 million USD to farmers for every 10% of lands that were compacted during harvest.

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Video: Spider Mite Control with Predatory Mites (Neoseiulus californicus)

The predatory mite Neoseiulus californicus is an effective natural enemy of various species of spider mites, including the two-spotted spider mite (Tetranychus urticae). As a key player in biological pest control, this predator helps growers protect their crops sustainably.

How does Neoseiulus californicus work?

•Specializes in targeting the larval and nymphal stages of spider mites.

•Also consumes spider mite eggs, ensuring population control.

•Detects prey through webbing and leaf damage rather than sight.

•Feeds by sucking out the contents of its prey.

Why use Neoseiulus californicus for spider mite control?

•Highly adaptable to different environments, including warm and dry conditions.

•Works as both a preventive and curative solution for spider mite infestations.

•Complements other predatory mites, such as Phytoseiulus persimilis, for integrated pest management (IPM).

•A natural, sustainable alternative to chemical pesticides.