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FORESTS OUT OF BALANCE

FORESTS OUT OF BALANCE. MILE-A- MINUTE WEED AND OTHER INVASIVE VINES JUDITH A. OKAY, Ph.D. KNOW THE ENEMY ( Polygonum perfoliatum and OTHER INVASIVE VINES). English ivy Chinese wisteria Oriental bitter sweet Porcelain berry Climbing euonymous Japanese honeysuckle.

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FORESTS OUT OF BALANCE

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  1. FORESTS OUT OF BALANCE MILE-A- MINUTE WEED AND OTHER INVASIVE VINES JUDITH A. OKAY, Ph.D

  2. KNOW THE ENEMY(Polygonum perfoliatum and OTHER INVASIVE VINES) • English ivy • Chinese wisteria • Oriental bitter sweet • Porcelain berry • Climbing euonymous • Japanese honeysuckle

  3. WHY ARE THEY SO BAD?INVASIVE STRATEGIES • MODE OF REPRODUCTION • MODE OF DISPERSAL • RESOURCES • COMPETITION • SURVIVAL

  4. RESOURCES • WATER, • SUNLIGHT • SOIL (SPACE AND MINERALS)

  5. MODE OF DISPERSAL • WIND (LIGHT SEED WITH AIRBORNE PHYSIOLOGY) • WATER ( BOUYANCY, FLOTATION PHYSIOLOGY) • ANIMAL ( ATTACHMENTS SUCH AS STICKY, BARBS, OR EDIBLE BERRY OR NUT) • HUMAN ( TRANSPORTING, PLANTING DISPOSAL)

  6. MODE OF REPRODUCTIONSEXUAL REPRODUCTION - FLOWER, POLLINATION, SEED PRODUCTIONASEXUAL REPRODUCTION-VEGETATIVE (FROM PLANT LEAVES, ROOTS, STEMS)

  7. COMPETITIVE EDGE • EARLY COLONIZER • PRODUCE MANY SEEDS OR YOUNG • EFFICIENT AT RESOURCE USE • GROW RAPIDLY • MULTIPLE DISPERSAL AGENTS • ATTRACTIVE FLOWER, FRUIT, SEED, LEAVES OTHER FEATURES

  8. WHAT MAKES SURVIVORS • HARD OR ARMED SEED COVER • NOT SENSITIVE TO HEAT, COLD, MOISTURE • SEEDS VIABLE FOR LONG PERIODS • SEEDS CONTAIN GOOD NUTRIENT SUPPLY ( SIZE IMPORTANT) • NOT SEED DEPENDENT

  9. HOW DOES MILE-A-MINUTE FIT THE MOLD? • MORE THAN ONE MODE OF DISPERSAL • PRODUCES FOR A LONG SEASON AND MANY SEEDS • GROWS QUICKLY/ OUTCOMPETES ARMED FOR COMPETITIVE EDGE • NO NATURAL PESTS OR DISEASES IN USA • UNUSUAL AND “PRETTY”

  10. MAMCLIMBING 20-30 FT WILLOW

  11. BUTTON BUSH SEEDLING TREE SHELTER

  12. MONOCULTURE WHERE SEEDLINGS WERE (HUMPS)

  13. KNOW THE FACTS FOR MANAGEMENT AND CONTROL • MECHANICAL CONTROL • CHEMICAL CONTROL • BIOLOGICAL CONTROL

  14. PREVENTION • RECOGNITION • ACT QUICKLY • BE PERSISTENT • SITE PREP • INCINERATE PLANT DEBRIS, DON’T RECYCLE INVASIVES!

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