TYLER, Texas (KLTV) – Farmers across Texas are on alert for an invasive pest that\u2019s threatening the state\u2019s already dwindling hay supply.<\/p>\n
The pasture mealybug has now been detected in 22 counties. Right now, it\u2019s most prevalent in South Texas, but experts say they strongly suspect it\u2019s already here in East Texas.<\/p>\n
The pest is fond of Bermuda grass and bluestem stands. While adults don\u2019t feed, immature mealybugs feed on plant sap, leaving behind a sugary substance on the leaves in the process. That substance promotes mold growth, which blocks photosynthesis. Unlike other pests, it kills the plants down to the roots as it feeds; that\u2019s because its saliva is toxic to plants. Even low numbers of mealybugs can result in pasture dieback.<\/p>\n
Although they\u2019re mainly spread on the wind, movement on machinery, cattle or farmers\u2019 clothing is a big concern. The bugs are cottony, white, waxy-looking insects. In fields, it can take weeks for crops to die, but there are other signs of an infestation. Plants will turn yellow first, then reddish-purple just before dying.<\/p>\n
There is currently no reliable, tested management strategy to keep the pest out of Texas crops, but grazing or cutting infected pastures is recommended.<\/p>\n
Reducing areas of thick-growing grass creates unfavorable conditions for the pests to spread, and it also enhances nutrient uptake for grass regrowth. Farmers also need to clean their hay-cutting equipment if they\u2019ve been in an infested field.<\/p>\n
Most importantly, if you think your field may be infected, you\u2019re encouraged to make a report. You can do that by contacting the Texas Department of Agriculture at 1-800-835-5832. Be prepared to include where the infestation is, as well as pictures and a description of the damage.<\/p>\n
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