Determine whether pest populations have reached the economic threshold requiring chemical control. Enter your pest type, observed count, crop value and control cost to get an action decision, population ratio, benefit-cost ratio and correct sampling method for aphids, bollworm, whitefly, brown planthopper, armyworm and more.
Select a pest to auto-fill its economic threshold, then enter your observed count to find out if spraying is justified. Optionally add crop value and control cost to calculate the benefit-cost ratio.