The Agronomy Advisor 5/31/18
Watch the happenings in the warehouse during the 2018 planting season. Fun to watch the corn and beans head out of the warehouse and to your fields!
Mark your calendars for our upcoming Summer Seminar Series! More information will be announced before each session. Stay tuned!
This year has brought exceptionally high levels of spider mites. Drought can trigger higher levels of spider mites by speeding up the movement from grass areas to the field, reducing the levels of fungal diseases that hold mite populations down, and decreasing the time it takes for mites to reproduce to the point that predators cannot keep up.
If you are going to bale or shred your waterways and pastures, be aware that the mites will move to your fields after cutting the grass. Either plan to leave passes of grass along field edges to prevent this movement, or follow behind the shredder with a miticide.
Spider mites result in large water losses from plants and lowered photosynthetic capabilities. In corn, if damage is present in the lower third of the plant, mites have moved to the middle third, and the plant has not yet reached dough stage, spraying should be seriously considered and will provide an economic benefit. In soybeans, the spray threshold is when plants show heavy stippling on lowest leaves with yellowing and leaf loss occurring and stippling is moving in to the middle third of the plant.
Read the following articles for more info on spider mites in corn and soybeans.