Pecan IPM Toolbox
Insect Monitoring and Control
Obscure Scale Control
Correct Air Temperature
Dormant oil should be applied when temperatures are between 40 degrees and 70 degrees F for 48 hours following the application. Unstable weather patterns during late January and February often limit opportunities for an application during that period.
Growers are advised to look for a favorable weather pattern beginning January 1. It is best to wait until that time, because scales do not feed much once the trees go dormant and the scales must survive on their own body food reserves. The longer the scales must live through the winter, the weaker they become and the better the control.
Next: Thorough Coverage