hort.net Seasonal photo, (c) 2006 Christopher P. Lindsey, All Rights Reserved: do not copy
articles | gallery of plants | blog | tech blog | plant profiles | patents | mailing lists | top stories | links | shorturl service | tom clothier's archive0
Gallery of Plants
Tech Blog
Plant Profiles
Mailing Lists
    Search ALL lists
    Search help
    Subscription info
Top Stories
sHORTurl service
Tom Clothier's Archive
 Top Stories
New Trillium species discovered

Disease could hit Britain's trees hard

Ten of the best snowdrop cultivars

Plant protein database helps identify plant gene functions

Dendroclimatologists record history through trees

Potato beetle could be thwarted through gene manipulation

Hawaii expands coffee farm quarantine

Study explains flower petal loss

RSS story archive

No Subject

John Bruce commented on the use of "wetting agents" being beneficial with
Cygon--I'd concur on this, but I'd encourage looking for those that are
described as "spray surfactants," breaking down the surface tension of the
droplet while also working into the outer waxy cuticle of the leaf and
staying there (an old expression was "sticker/spreader"). 

The axiom "for every 10 degree (Celsius)  increase, chemical activity
doubles" has some merit, but I'd rather not spray Cygon in the heat of the
day, but would prefer to when there is no wind, and at times when light and
humidity conditions would increase borer activity--it has some residual
activity, but it's best use is on the emerging larva.

Dimethoate (Cygon) was regarded for a time as the best miticide for row
crops, and I suspect that's where a great deal of its reputation as a
systemic comes from.  There are better "larvacides" available, but I doubt
any will ever make it to the ornamental/residential/homeowner market(s)--as
I doubt any homeowner wants to see their pet sick, or have their backyard
smelling like a chemical warehouse.

 © 1995-2017 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index