Table 1. Guide to southern pine beetle spot growth and control priorities (May through October).

Key to Spot Growth	Your spot's classification	Risk-rating points
Fresh attacks	absent present	0 30
Number of freshly attacked trees and those with developing brood	1-10 11-20 21-50 more than 50	0 10 20 40
Pine basal area (or stand density) at active head(s) (ft^2/acre)	less than 80 (low density) 80-120 (medium density) more than 120 (high density)	0 10 20
Average size class of timber (in inches)	pulpwood (9 in or less) sawtimber (more than 9 in)	0 10

Add up the risk-rating points that apply to your spot:

Score	Control Priority
0-30	Low
40-60	Medium
70-100	High