Canola School: Understanding the Diamondback Moth - Lloyd Dosdall, U of A

[shaney]

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[furrowtickler]

I called this back in april when the moths flew in, I knew there was going to be trouble. Then again in late may early june when the second wave was here when spraying late evenings. The third generation is starting to show up as the above post mentions.

[furrowtickler]

Good video for those who are not aware of this potential problem. That is why a while back when I seen the moths in the lights at dusk I tried to let guys know, but very few payed heed.

[Gerald_sk]

After watching this video I come back to the question no Chemical
company wants to answer. Why do we allow then to sell wide spectrum
pesticides like lorban. If companies where forced to develop
products that only kill the problem insect the short term cost
may be higher, but our long use would be lower.
If you read the history of the wheat midge, it decimated wheat
for a few years then it was never heard from for 40 years. Now
we have farmer that spray on general principals whether or not there
is any midge. Was at meeting where Unity was discussed. Person
next to my got very hostile when told he shouldn't spray unity as it
would increase the midge in the field that where resistant to
the effects of unity.