Jonagold Apples

Integrated Pest Management for Apples

A Guide for Sampling and Decision-Making for Key Apple Pests in Northwest Washington

Tables and Charts - Insect Identification Sheets

Acknowledgements

Nooksack IPM Advisory Committee

Introduction

Key Sampling Periods

Part 1 - Pre-bloom

Part 2 - Bloom through Petal-Fall

Part 3 - Late Spring and Summer

Part 4 - Post Harvest

Part 5 - Tables and Charts

List of Key Pests
Disease Cycle of Apple Scab
Apple Scab Infection Table
Disease Cycle of Anthracnose
Codling Moth Charts
Spider Mite Graphs
Binomial Sampling
Mite Counting Grid
Insect Identification Sheets

Part 6 - IPM Resources

Part 7 - Pesticides and Water

Common Beneficial Spider Mite Predators
Secondary Pests that Feed on Foliage
Common Beneficial Insects

Common Beneficial Spider Mite Predators

Predatory Mites (Typhlodromus occidentalis) (Zetzellia mali)		Minute Pirate Bug (Family: Anthocoridae)

Adult Western Predatory Mite, T. Occidentalis, assuming the color of its prey, European Red Mites		Adult Minute Pirate Bug (1/16 inch long) feeds on spider mites, aphids, and thrips.

Eggs of T. occidentalis are oval in shape.		Immature nymph stage of Minute Pirate Bug is also an effective predator. (1/4 inch long)

Adult Stigmaeid Mite, Z. mali, is more pointed at the rear end than a spider mite.

G.W. Menzies & C.B. MacConnell, WSU Cooperative Extension Whatcom County
December 1999

Funded in part by: Washington State Department of Ecology through U.S. Environmental Protection Agency, Section 319 Funds