Technical notes
Cross-contamination in a blending house: the failure nobody can diagnose later
A trace of a strong attractant in the wrong drum shows up as an inexplicable change in catch, not as a laboratory failure. Controls that cost…
Storing aldehyde and diene actives so the second season still works
Aldehydes oxidise and conjugated dienes polymerise. What that means for containers, headspace, light and the way a drum is opened.
Changing pheromone supplier mid-season without changing the catch
The practical sequence for qualifying a second source: what to compare, what to trial, and what not to change at the same time.
Load rate is not release rate: what a supplier can and cannot control
A load rate borrowed from another dispenser type is a starting point, not an answer. Where the boundary between supplier and formulator actually sits.
Isomer ratio matters more than purity in a lure active
Two lots with the same assay and a different E/Z split are not interchangeable. Why the geometry, not the percentage, is the specification.
How to read a certificate of analysis for a pheromone active
A COA that reports one purity figure tells you almost nothing useful. Here is what the document has to contain before it can support a specification.