I was asked this question yesterday. Many times, we spray different fertilizer/pesticide combonations for different things. If I am using an insecticide, it needs watered in to avoid burning the tips of the grass and to work the insecticide into the root zone. Preemergent herbicides are activated by water. Root pathogens have to be sprayed for and watered in. Yesterday, we spray fertilized the Newport fairways with feed grade (cheaper) Urea and Hydrexx (a nitrogen stabilizer). We found that cart traffic before the spray has had time to dry resulted in leaf tip burn, which is not great to look at. We generally are spraying with very little water carrier...like fairways spray at 30 gallons per acre. This means the fertilizer is very concentrated when it is applied. One three minute turn of the sprinklers in the fairway, washes the fertilizer off the leaf tip and dilutes the fertilizer, so it is safe to drive on. Most times on the greens, we plan our applications around rain events so we are not oversaturating them. So there is the explaination why the crazy golf course superintendent is irrigating after it rained last night!
No comments:
Post a Comment