sampling for the detection of stored-product...
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Sampling for the Detection of Stored-Product Insects Blaine Timlick [email protected]
Sampling All sampling involves uncertainty. The degree of uncertainty
depends upon the variability in the material, inexactness in carrying out procedures, and the number (size) of the samples taken. (Bicking 1967)
“Sampling theory and practice” “it is completely out of the question to assume that any
part of a lot has a composition exact to the entire lot. Thus the fraction of the lot that is accessible cannot be 100% representative of the entire lot.”
Sampling choices Measure the precision and accuracy of a sampling method Decide upon the precision and correctness of a given
sampling method
Sampling
Sampling for Insects in Stored Products Information for assurance of customer satisfaction
• Appropriate methods for accurate information • Appropriate information for decision making
Information for assurance to meet regulatory requirements
• Phytosanitary or Regulated pests
Sampling
Grain Sampling How grain is sampled How insects are detected
Insect Sampling Where to sample How and When to sample
Insect Trapping Types of traps
Grain delivery and sampling
Segregation and sampling for insects
Sampling – Receival and Movement
Sampling - Storage
Sampling - facilities
Sanitation
Detection
Trapping
Automated trapping
Automated trapping
Insect Identification and Training
Quality Control
Having procedures in place that are monitored and reviewed – how good are they working, can they be improved? Using mechanisms and techniques to sample for
insects Recording findings – reviewing to look for re-
occurances or where additional resources are required Recording actions – to determine effectiveness
(appropriate application methods, resistance)
