They spread sickness: Lots of pests are known to trigger numerous health issues. Rodents can transmit salmonellosis, hantavirus and various significant disorders. Cockroaches can induce allergy signs and bronchial asthma. Cultural controls: Growers may also disrupt the atmosphere with the pest by harvesting earlier, sterilizing their greenhouse resources and turning underneath crop re... http://safepestcontrol.net.au/pest-control-for-food-processing-plants/