TY - JOUR AU - Dahlsten, D. L. AU - Garcia, R. AU - Prine, J. E. AU - Hunt, R. TI - Insect problems in forest recreation areas pine needle scale… mosquitoes JF - California Agriculture JO - Calif Agr Y1 - 1969/07/01 VL - 23 IS - 7 SP - 4 EP - 6 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v023n07p4 AB - Man's exploitation of his surroundings with disregard for nature's interrelationships has led to serious environmental problems including pollution of the air, water, and land. All of man's activities influence his environment in one way or another. The problem is to find ways to minimize this influence and make sure that these activities disrupt the environment as little as possible.