Many pests scouted for are small or only found on a few plants out of hundreds.
How a scout walks a block can determine whether the pest is found or not. Rigid block scouting . The rigid block scouting method is the most thorough and, therefore, the most time consuming of the scouting methods. It is necessary to scout for the spruce spider mite, balsam woolly adelgid, rosette bud mite and hemlock rust mite. To scout a block using the rigid block scouting method, enter the block two to four rows from one corner.