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

Re: Leaf spot/insect control

In a message dated 97-02-10 12:53:24 EST, you write:

>We feel that the leaf spot is spread by insects.   The japanese beetles
>spread it on roses and the aphids seem to spread it on the irises.  Even
>garden tools can spread it.  We have found that by keeping down the aphid
>populations we have far fewer leaf spot problems.  Also, June bugs spread
>soft rot.  Don has examined their mouths under the microscope and they had
>Erwinia carotovora (soft rot) in them.  Possibly they inject it into other
>plants then after the soft rot breaks down the rhizome they eat them.

A local grower who regularly buys new intros from Schreiners is a great
believer in SEVIN for her iris.  I have never seen any sign of leaf spot or
rot in her garden.  She fertilizes, douses with SEVIN regularly, and
cultivates constantly, but does not use a fungicide.  The insect control
seems to really work for her.

Linda Mann east Tennessee USA

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