What is Plant Resistance?
If so many pests are out there, how can plants survive?
Plants don't wait passively to be ravaged by pests; they combat insects
and disease with an arsenal of chemicals, barriers and other defenses.
These abilities are referred to as plant resistance. In fact, farmers
use natural plant resistance as the most effective, economical and environmentally
safe way to manage pests. You too can use this IPM strategy by purchasing
resistant varieties and growing healthy plants that can fend for themselves.
How Do Plants Combat Pests?
- Taste: Some plant varieties
don't taste good or are unattractive to many insects.
- Bodybuilding: Many plants
have physical shapes and structures that inhibit pests from feeding
on them. Rhododendron varieties have leaf edges that are curled to resist
root weevil feeding. Plants with thickened cell walls can avoid some
- Roadblocks: Some plants
have hairy, sticky or spiny leaves to deter pests. These hairs and similar
structures can determine how quickly insects and mites infest a plant.
- Pesticides: Did you know
that most man-made pesticides are derived from plants? Plants themselves
produce many chemicals that adversely affect pests.
- Bodyguards: Plants recruit
bodyguards by attracting predators and parasites to take care of pest
- Tolerance: Many plants just
refuse to let pests bother them. In fact, tolerant plants can grow better
when munched on by a pest.
Passive Aggressive Plants Home | Selecting
Resistant Plants >>