Heavy spring rains are creating headaches for Oregon agriculture. Willamette Valley farmers have delayed planting a number of crops, and that may cause problems down the road, making for a later harvest that puts more stress on the plants. Especially when there’s a lack of moisture in June and July. Tom Silberstine at the OSU Extension in Marion County says that could affect crop yields later in the year. He says the La Nina weather conditions have been sending rain over the northwest while creating a drought in Texas.