[NAFEX] Thoughts on Early Season Tree Spraying?

jas39a at earthlink.net jas39a at earthlink.net
Wed Mar 18 10:45:11 EDT 2009

I have always applied dormant oil spray at this time.  It controls aphids by suffocating the eggs (assuming that it is applied properly...i.e., by spraying upwards so that the spray enters the downward-pointing cracks in the bark, which is where aphids lay their eggs).  Dormant oil can be applied at any time of the year when frost is not expected withing 48 hours.

Eddie Earles

-----Original Message-----
>From: adaggy at twcny.rr.com
>Sent: Mar 18, 2009 10:17 AM
>To: nafex at lists.ibiblio.org
>Subject: [NAFEX] Thoughts on Early Season Tree Spraying?
>I have been developing a spray schedule for my apple trees this year. In my research, I have come across several university extension sites that recommend dormant oil spray, bordeaux spray, or both at this time of the year. I am curious what other people think about which option to choose. Also, if doing both bordeaux and dormant oil, which would you apply first? Are there temperature restrictions for bordeaux spray? The trees in question are in Zone 5A.
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