9 - Control of Infestation Flashcards
What 5 records should be kept post any scheduled cleaning
Sighting and treatment of infestation
Physical conditions where infestation occurs
Housekeeping ‘failures’ in any areas of the silos, mill and warehouses
Deficiencies in proofing against pests
Recommendations and action taken for immediate and future preventative measures
Chemical treatments in the form of insecticides are defined into what two types
Contact and mist-sprayed
Contact insecticides can offer some protection against what type of infestation
Confused flour beetle
What are 3 limitations of contact insecticides
Thermal fogging, smoke generators and mist and aerosol spraying will kill moth adults which are exposed to the airborne insecticide particles/droplets, but have little effect on moth populations unless treatment is carried out very frequently, as the insecticidal deposit will only last a short time
Many insect pests breed and lay their eggs deep in the flour, therefore the larvae and pupa are not exposed to the airborne droplets or those that land on the horizontal surfaces
High standards of hygiene are necessary if surface insecticidal treatments are to be of any value in controlling crawling insects
Contact insecticides should never
Come into contact with foodstuffs
Pheromones are used as a means to … moth and beetle infestation
Monitor
Identify and briefly describe 7 critical steps of an IPM
Inspection - schedule regular inspections of where pests are most likely to appear
Preventative action - Steps taken to address problems found in inspection
Identification - Different pests have different behaviours, if they are identified, they can be eliminated more efficiently
Analysis - The reason for a pests presence should be determined
Treatment selection - Try non-chemical first, if they fail then chemicals are permitted
Monitoring - Pest management is ongoing
Documentation - The IPM program needs to be well documented for auditing
What methods can be used for rodent control
Trapping
Poisoning
Gassing
What are the 4 types of rodent poison
Anticoagulents
Alphachloralose
Calciferol
Contact dusts
What type of poison is suitable in areas that are difficult to access and are not near grain or flour
Contact dusts
What is the minimum gap that an adult mouse can gain entry through
9mm
What is the UKs requirement for live capture trap visits
twice per 24 hours
The gassing of rodent burrows can only take place is the burrow is at least … metres from the buildings
3
Describe the 7 ways to combat bird pests
Repellents - spikes along edges to prevent perching
Proofing - Plastic strip curtains allow humans but not birds
Netting - Prevents birds from nesting under warehouse canopies
Trapping - used for birds on silo roofs
Stupefying baits - usually contain a narcotic
Shooting - licensed method used by trained marksmen
Mist netting - used against sparrows inside buildings
