Diseases of Azaleas and Rhododendrons “Plant disease is the rule, rather than the exception.” page # 79.

Slides:



Advertisements
Similar presentations
Pests and Diseases 28.00: Examine distinguishing characteristics of pests so as to determine best management practices : Compare methods of control.
Advertisements

Essential Standard Compare distinguishing chrematistics of pest.
Where do bacteria come from?
`Houseplants `Caring for houseplants `W`Watering `s`signs of improper watering `d`drooping leaves - lack of water.
Basic Plant Pathology Jennifer Davidson Author: Mila Pearce
Key Plants and Key Pests in Columbus Landscapes
Integrated Pest Management
Controlling Insect Pests in the Garden
The Who and What of Greenhouse Problems! Objective : Explain potential problems related to bedding plant production 11.02: Hypothesize causes.
Winterberry holly female llex verticillata By: Amelia Dame.
Black Spot Diseases By Colton Alley and Chris Gillihan.
Unit 4: Wheat Diseases. Rusts Three forms can affect wheat (all fungal forms) Stem rust Leaf rust Stripe rust Stem Rust Most destructive wheat disease.
Culture & Identification, Ch 8 Part 2 Insects. Cultivation & Identification, Chapter 8, Insects Vegetable Pests
Unit 21 Terrariums.
Floriculture Disorder Study Guide Central Region Ag Education Created by: Melissa Riley Area Horticulture Teacher.
Foliage Pests of Pecan Will Hudson Extension Entomologist.
Floral Careers Plant Propagation. Major Insect Pests in the Greenhouse.
Generally seen when the plants are in reproductive phase. Life Cycle The pest is active from May to November. Adults live for 2-3 weeks and produce 8-22.
Potted Plant Productions Chrysanthemums. Introduction Dendranthema grandiflora or Chrysanthemum morifolium Native to China and Japan #2 potted flowering.
“PLANT PESTS” INTERIOR PLANTS. PREVENTION F Monitor Regularly F Sanitation F Supplier F Quarantine F Alter Conditions.
Lecture 16 Turf, Flower and Vegetable Diseases. Turf diseases Turf diseases Fusarium patch, red thread disease, fairy rings and thatch are common in Seattle.
Spider Mites Chapter 6 Section VII of the Pest Bear & Affiliates Service Personnel Development Program , Central Fla Duplicating,
Pests & Diseases. Insects - Anatomy Insects ▫Small animals that have three body regions and three pairs or six legs. ▫The three body regions are….  Head.
Root Galls formed by Root-knot Nematodes
Introduction Tomato growers prefer buying quality seedlings grown in professional nurseries to have an assured supply of healthy planting material. Tomato.
Insect bad guys! You’ll never look at a bug the same.
Bellringer-October 7, )Name 3 different causes of why a plant might become diseased (think hard): 2)What is the difference between biotic and abiotic?
Apricots Chapter 21. Production The lowest production of the all stone fruits produced in the US. This is due to a very early bloom. The top producing.
Unit 10: Soybean Diseases.  Bacterial Blight Occurs on leaves of the SB  Small angular spots  Appear yellow at first  Later turn brown to black 
Diseases Unit: Plant Pests. Objectives: 1)Explain diseases as related to plants 2)Describe the types and causes of plant diseases 3)Explain how common.
Insect Identification RITCHIE FEED AND SEED INC. (613)
PLANT DISEASES. BLACK SPOT Black spot of rose, also known as leaf blotch, and leaf spot, is a disease caused by a fungus called Diplocarpon rosae. The.
Pest.
Insect bad guys! You’ll never look at a bug the same.
Unit 12: Soybean Insects. Carefully monitor both damaging and beneficial insects through scouting Have knowledge of economic thresholds for insect damage.
Flies, gnats, mosquitos…
How Plants Live and Grow
Minnesota First Detectors Oak Wilt Deadly Pathogen.
Root diseases End Next.
Who Wants To Be A Master Gardener? Master Gardener.
Plant Disorders Insects and Pest. Snails/Slugs Slug baits although messy, are probably the most effective tool for management. Baits containing metaldehyde.
Plant Disorders Diseases. Powdery Mildew The disease is easily recognizable as a white to gray powdery growth on leaves and sometimes stems and flowers.
Poinsettia Production By: Johnny M. Jessup Agriculture Teacher/FFA Advisor.
Essential Standard Compare distinguishing chrematistics of pest.
By: Sydney and Deanna. Plant Needs A plant needs water, sunlight, soil, space, and air.
Chinch Bugs Chapter 1 Section VI of the Pest Bear & Affiliates Service Personnel Development Program 2005.
Pests and Diseases. Aphid – Adult stage Fungus Gnat – Adult stage.
 By: Tatyana Mavigliano. Root Stem Leaves Flower.
Identification, Symptoms and nature of damage: Shoot Gall Psyllid and Leaf gall midges Next.
Plant Processes Plant Science. Trivia  What is the fastest growing organism on earth?  The Giant Kelp algea (Macrocystis pyrifera) is the fastest growing.
1 Apple Entomology Insect ID. 2 Shot Hole Borer Little holes in the branches. Causes branches to die off.
Tuesday 4th April 2010RHS Level 2 Certificate in Horticulture 1 Plant Pests.
Introduction to Horticulture CDE Brandon Smith Insect Identification.
Home Vegetable Gardening. Site selection What to grow Starting seeds Soils and fertility Common pests and diseases.
8.0 Compare distinguishing characteristics of pests 8.01 Discuss the anatomy and life cycle of pests.
Onion Diseases Fungal Physiological
364.T1 Model Agricultural Core Curriculum: Supplement University of California, Davis Damage Caused By Plant Pests Fungi Fungi are microscopic plants which.
Biology in Focus, HSC Course A Search For Better Health Topic 13: Diseases of Plants.
Floriculture Disorder Study Guide Central Region Ag Education Created by: Melissa Riley Area Horticulture Teacher.
PLANTS Plants need air, water and sun to grow. They start from a seed.
Floriculture Disorder Study Guide
Using The Plant Disorder Diagnostic Key
RHODODENDRON KIUSIANUM or RHODODENDRON OBTUSUM
Horticulture Diseases and Disorders
Houseplants.
Diseases Help me! I’m dying..
Pests & Diseases.
Plant Diseases Diseases are caused by the following biotic factors:
ETIOLOGY OF PLANT DISEASES. ETIOLOGY OF DISEASE Study of causation or origination Study of causation or origination -Greek word “aitiolologia” -Greek.
Roots and Stem Station.
Presentation transcript:

Diseases of Azaleas and Rhododendrons “Plant disease is the rule, rather than the exception.” page # 79

AZALEA LEAF AND FLOWER GALL Clue: look for fleshy growths FUNGUS: EXOBASIDIUM VACCINII (also on Camellia, blueberry, leucothoe and rhododendron) Treatment: pick them off! Fungicide may be needed. fungicide may be needed

Lace Bug Hemiptera: Tingidae (Hemiptera: Top of leaf has spotty appearance, similar to mite damage Clue: look under leaf...

Lace Bug evidence under the leaf Lace bug inhabits the underside of the leaf Look for sucking spots, droppings, cast skins, and live flies (mites don’t leave droppings)

Lace Bug! 1/8”, netlike pattern and dots on wings Cultural Control: Spray underside of leaves in May (may need to repeat in August - two generations per summer) Check Virginia Pest Management Guide for specifics

Phythphthora fungus AKA: Black root rot wilting appears to be lack of water BUT... don’t be tricked

Clue: The root is really black! black!

Stems may also appear black Treatment: Replace with disease resistant cultivar, plant in new location that is “high and dry” Soil drenching with fungicide at 4-week intervals D near where tthe root