5 Pest Management Schedules for Diseases and Major and Minor Insects
Contents
5.2 Pest Management Schedules for Diseases and Major
Insects
5.1 Introduction
This section provides guidelines pertaining to management programs for control
of diseases and major insects in vineyards of New York and Pennsylvania.
Although this section is organized along a phenological
schedule to reflect important events during the growing season, there is no
implication that every spray listed will be necessary. Rather, this is a
schedule of the various times when individual diseases and insects might
require management; refer to the notes to help determine which sprays are
generally necessary and which ones apply only to certain
conditions. Refer to the pictures in the front of this publication for help in
identifying critical growth stages during the season. Note numbers appearing in
small square brackets address precautions or considerations necessary for use
of particular methods or materials. Be especially alert to the notations that
certain chemicals may not be approved for your state or for certain growing
areas within a state. Restricted-use pesticides, shown with an asterisk (*)
next to their names, may be purchased and used only by certified applicators or
those under the direct supervision of a certified applicator.
5.2 Pest Management Schedules
for Diseases and Major Insects
|
Growth Stage |
Pests |
|
Rate per Acre |
|
|
DORMANT |
Canker diseases (Eutypa, botryosphaeria) |
|
Topsin M WSB |
3.2 oz/gal water |
|
Apply as a paint or directed spray to wounded surfaces after pruning and before the next rain. This recommendation is primarily for large pruning cuts, but has been shown to be beneficial under such conditions. Application is allowed only in New York, under special Local Needs label # NY-07002. A copy of the SLN label and the federal product label must be in possession of the user at the time of application. There is a 7-day re-entry interval following application. |
||||
|
BUD SWELL |
Climbing cutworms |
|
*Sevin 80WSP [1] |
2.5 lb |
|
Grape flea beetle, steely beetle |
|
*Sevin 80WSP[2] |
1.25–2.5 lb |
|
|
[1] Treat at bud swell during early spring. Buds are only susceptible from swell to 1-inch stage. Treat when bud damage is detected at above 2%. |
||||
|
[2] Treat when this insect appears in early spring as buds are swelling. Scout throughout bud swell stage, particularly in vineyard rows near wood lines or brushy areas. Look for feeding injury to buds or presence of steely blue beetles. Beetles are most active on warm sunny days. |
||||
|
1-INCH SHOOT GROWTH (when the average shoot length is 1 inch) |
Phomopsis cane and leaf spot |
|
Captan 50WP [3] |
2–4 lb |
|
OR |
Captan 80WP |
1.25-2.5 lb |
||
|
OR |
Captec 4L |
1 – 2 qt |
||
|
OR |
Dithane DF |
2 – 4 lb |
||
|
|
Dithane M45, |
|
||
|
|
Manzate 75DF, |
|
||
|
|
Penncozeb 75DF, |
|
||
|
OR |
Dithane F-45, |
|||