Grape Pest Management - PA Wine Grape

Planning an

Integrated Pest Management Program

for Your Vineyard

Jeanette Smith

VineSmith, Inc.

Vineyard Pest Management Tool Kit

Fungicide Guide

Insecticide Guide

Herbicide Guide

Pest Management

Planning Guide

email updates

TERMS

Pest = organism that causes economic damage

to host crop

disease (viruses, phytoplasmas, bacteria, fungi)

insect / mite

weeds

vertebrates

Integrated Pest Management (IPM)= mitigating

economic pest damage using a combination

of methods: cultural, mechanical and

pesticides.

Pest Management Goals

keep pest populations < economic damage

minimize future damage explosions

minimize control costs (time, $)

minimize safety risks, environmental risks

Susceptible Host Plant Favorable Environment

Pest Organism

Pest Damage

Pest Management Strategies:

Breaking the Pest Damage Triangle

Susceptible Host Plant

Resistant or TolerantFavorable Environment

Pest Organism

Pest Damage



Susceptible Host Plant UNFavorable Environment

Pest Organism

Pest Damage



Susceptible Host Plant Favorable Environment

Pest Organism

Pest Damage



Pest Management Plan: Pre-plant

select disease-resistant varieties (market?)

select site w/ good air drainage, water drainage

install drain tiles if needed

orient rows parallel to summer winds

Pest Management Plan: Post-plant

Winter

cut (most) grapevines in nearby woods

remove weeds, debris around trunks

prune out old spurs, renew old weak cordons

remove / burn prunings, unharvested fruit

make a map of each vineyard block w/ rows, panels

Viognier Block


Winter






purchase / install weather monitoring tools

Weather Monitoring Tools

min / max thermometer

rain gauge

Weather Station

temperature

precipitation

relative humidity

leaf wetness


Winter







purchase pest id & monitoring tools, guides

hand lens

Pest Management References

Pocket Guide for Grape IPM

www.ipm.msu.edu/GrapePocket.htm

Compendium of Grape Diseases

www.shopapspress.org/40888.html

Weeds of the Northeast (Richard Uva, Joe Neal & Joseph Ditomaso)

http://www.cornellpress.cornell.edu

NY and PA Pest Management Guidelines for Grapes

http://ipmguidelines.org/grapes/

Michigan State University IPM Fact Sheets

http://www.grapes.msu.edu/id.htm

Vineyard Pest Management Tool Kit (VineSmith, Inc)

www.vinesmith.com

http://www.ipm.msu.edu/GrapePocket.htm

http://www.shopapspress.org/40888.html

http://www.cornellpress.cornell.edu/

http://www.grapes.msu.edu/id.htm


Winter





make a map of each vineyard block w/ rows



develop basic spray plan

Developing Basic Spray PlanUsing Vineyard Pest Management Tool Kit

identify target pests for each variety



identify critical control periods

Fungicide Guide

Insecticide Guide

My Basic Spray Plan




compare / select pesticides for each target pest





efficacy, possibility of resistance

spray interval (per label)

cost / acre / application

Fungicide Guide








toxicity to humans, non-target orgs

Toxicity Ratings









restricted use

Restricted Use









restricted use

use strategy, translocation

Activity: Fungicide Guide









restricted use

use strategy, translocation

resistance risk, class

Resistance Risk, FRAC / IRAC / WSSA Class





observe application restrictions

maximum consecutive applications

maximum rate per year

maximum applications per year

REI: restricted entry interval

PHI: pre-harvest interval

Application Restrictions

PPE, other

My Basic Spray Plan


Winter







develop basic spray plan

order pesticides (eradicants?)

order GBM traps


Spring

daily:

check GBM traps

record weather

calculate degree days (GBM), leaf wetness (BR)

check against MSU fact sheets

Weather / Trap Log


Spring

daily:

check GBM traps

record weather



weekly:

scout for pests / damage; check spray coverage

record / flag problem areas

Viognier Block


Spring

daily:

record weather



weekly:

scout for pests / damage; check spray coverage

verify (diagnostic lab, Extension agent, consultant)

record / flag problem areas

weekly: adjust spray plan for weather, pest pressure

spray interval

choice of pesticides: translocation, use strategy

Keep Records


Summer daily: continue weather monitoring

weekly: continue pest monitoring, spray coverage check

weekly: continue adjusting basic spray plan for weather, pest pressure (spray intervals, pesticides)

12-18” shoots: thin to 3-5 shoots / foot of canopy

bloom to fruit set: leaf-pull on west or south side of canopy

cluster-closing:

separate or thin “clumps” of fruit clusters

leaf-pull on east or north side of canopy

veraison: implement bird deterrents


Harvest assess fruit quality / ripeness, canopy throughout vineyard

flag and note problem areas

Post-harvest meet w/ Extension agent or consultant, discuss

improvements to management program for next year

THANK YOU!

I wish you a great 2011 vintage!

Grape Pest Management - PA Wine Grape

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