This past week has been excellent for alfalfa growth with the recent rainfall and the warm temperatures. While I have not heard of any problems with insects, it is always important to watch out for potential problems. In the past we have had infestations of potato leafhoppers (PLH) in alfalfa fields throughout the summer.
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With the recent rains last week and the warm temperatures this week, crops will really take off and grow with these ideal growing conditions. As the corn crop progresses, it is important to check cornfields for potential disease outbreaks.
A couple of weeks ago some parts of southeast Nebraska received some heavy rains and hail. It is important to check your fields to determine if there is some damage to your crops.
Each spring there is potential for challenges in getting herbicides applied in a timely matter for good weed control. With good precipitation weeds will take off if they have not been treated yet. High winds will slow the opportunity to treat fields safely in a timely manner. With the warmer weather, weeds will be exploding.
Sericea lespedeza has been a noxious weed for several years in the southeast corner of Nebraska and recently has become is a noxious weed for the whole state of Nebraska. Sericea lespedeza is a prolific seed producer and birds can spread the seed.
With some cold temperatures this spring alfalfa was slow to get started growing in several fields. The past few weeks there have been several reports of alfalfa weevil in southeast Nebraska and there has been some spraying of fields with insecticides prior to harvest. The rain received last week may have provided much needed moisture to allow for more growth before harvest.