5/5/2008 - Today the first weekly report of base 50°F degree-day accumulations is posted for the 2008 Iowa crop season.

5/5/2008 - As seeding rates and seed prices both increase, we must assess whether adding an additional unit of seed covers the cost of that seed.

5/4/2008 - For those who have not yet applied nitrogen fertilizer, is it better to apply the N or spend time in the field planting corn when soils dry? Several items need to be considered.

5/2/2008 - While ammonia and ammonium are not directly an issue for drinking water safety to humans, indirectly they are because of interference in disinfection for control of disease causing organisms.

5/2/2008 - Iowa State University evaluated the effects of N-Hibit™ seed treatment on soybean yield and SCN population densities in experiments at nine locations throughout Iowa in 2007.

5/1/2008 - Farmers should be prepared to make planter adjustments to improve the chances of good early plant growth of corn and soybeans in wet soils.

4/29/2008 - There are several factors to consider when deciding how to address alfalfa winterkill and winter injury this crop season.

4/29/2008 - There still may be time to plant forages this crop season.

4/29/2008 - As weather delays compress the time available to complete planting and associated field operations, use 2,4-D in burndown treatments in no-till fields should be carefully considered.

4/25/2008 - Iowa State University scientists are working to develop a method to identify genes to pathogens when resistance has been difficult to find.

4/25/2008 - This list of locations will be available so pesticide applicators can be aware of sensitive areas prior to making pesticide applications

4/23/2008 - The Clinic helps growers and agribusiness professionals diagnose and manage plant disease, weed and insect problems on all kinds of plants.

4/22/2008 - It was a long, cold winter, and based on temperatures, we predict that the mortality of overwintering bean leaf beetles was very high

4/22/2008 - Effective management of alfalfa weevil depends on timely scouting, correct identification and effective determination of insect populations.

4/22/2008 - Planting into established weeds greatly shortens the time required for weeds to impact crop yields

4/21/2008 - Farmers planning to grow soybeans in former CRP acres may want to consider inoculating the seed.

4/21/2008 - Seed quality is a problem for many companies this year but all are doing everything they can do to ensure we have the best quality seed possible.

4/21/2008 - When evaluating water quality monitoring data, it is important to know what is being measured.

4/17/2008 - Mild winters during the past decade have resulted in an increased occurrence of Stewart's disease in Iowa. Two disease prediction models are available to predict the seasonal and county-level risk of Stewart’s disease.

4/17/2008 - Estimating the accumulation of heat on a daily basis allows scientists to model crop or pest growth.

4/16/2008 - There is still plenty of time to plant corn. Our best data shows that Iowa corn yield responses don't decrease significantly until May.

4/14/2008 - Soils are wet and there is little time until corn planting begins. Also, fertilizers are in short supply and at high prices. So what should you do? There are a few viable options depending mainly on soil-test values and the particular crop.

4/14/2008 - The Iowa State University Agronomy Extension Soil Fertility Web site has a new look qne includes a new section located on the home page called “Current Topic.”

4/11/2008 - See how the lessons learned from the 2007 invasion of soybean rust in Iowa triggered changes in Soybean Rust Fast Track System.

4/8/2008 - Iowa producers plan to grow fewer acres of corn and more acres of soybeans in 2008 than last year.

4/2/2008 - One of the biggest advantages of using a no-till system is that it leaves significant amounts of crop residue on the soil surface, which protects the soil from water erosion and improves soil tilth.

4/1/2008 - Assessing whether nematodes are damaging corn requires determining what species are present in a field and what their population densities are when the numbers are at their highest.

3/26/2008 - Act soon to reduce winter annual weed infestations on no-till crop land.

3/25/2008 - Iowa growers and crop advisors are inquiring whether winter annual weeds could be supporting SCN reproduction leading to increases in SCN population densities.

3/18/2008 - This book reviews the factors involved in making fungicide spray decisions and basic fungicide information, including mode of action, application and use strategies.