| DESCRIPTION: Rust-colored pustules | |||||||
| BACKGROUND | LIFE CYCLE | ||||||
| Availability | Habitat | Adult Emergence | Egg Laying | Larva Development | F1 | Adult Life Span | Over Winters |
| G | Most areas where host plant grows | Early spring 12 to 16 days after innoculation | On stems and leaves | Covers surface of stems and leaves | Continuous | N/A | On rosette leaves |
| ATTACK | COLLECTION | NOTES | |||||
| Stage | Damage | Life Stage | Method | Pustule produced spores are easily spread by wind and water | |||
| Pustules - | Infestation limits photosynthesis to leaves and stem | Infected plant material August to September | Clip infected stem or leaves | ||||
| DESCRIPTION: Nematode-not visible to unaided eye | |||||||
| BACKGROUND | LIFE CYCLE | ||||||
| Availability | Habitat | Adult Emergence | Egg Laying | Larva Development | F1 | Adult Life Span | Over Winters |
| N | Sites with cool moist spring weather | Spring-juveniles require 1 month prior to becoming infective | In 5 to 12 mm galls during host plant growth stage | In galls on leaves, stems and root collar | 3 weeks | Leaves, stem, root collar | |
| ATTACK | COLLECTION | NOTES | |||||
| Stage | Damage | Life Stage | Method | Gall formation generally only occurs at sites with cool, moist spring weather. | |||
| Juveniles and adult - | Galls/leaves stem root collar | Galls in spring | Clip or dig plant material | ||||