Last Thursday, April 14th, I went to Dalhart, TX. to check the sugarcane aphid overwintering cage with Mr. Mike Bragg, County Extension Agent - Dallam/Hartley county. Mr. Bragg had set up this cage last October in the corner of a pivot field that is located about 15 miles East of Dalhart. He had placed several hundred sugarcane aphids on the johnsongrass inside and outside of the overwintering cage. When we looked inside and outside of the cage we did not find any sugarcane aphids. We only found just one or two johnsongrass sprouts emerging from the rhizomes inside or outside of the cage. We replaced the cage and we will check the cage again in May.
On my way back from Dalhart, I checked the overwintering cage at the Texas A&M AgriLife Research Station at Bushland, TX. There was more johnsongrass sprouting inside and outside of the cage. But, I was still unable to find any sugarcane aphids on the above ground leaves and stems or below ground at the base of the plant or on the rhizomes. The cage was replaced and will be checked again in May.