Ground Pearls Flashcards
Describe females
Wingless
Pink scale insect
Well developed fore legs and claws
Describe males
Gnat like
Rare
Describe eggs
Clusters
Pink white
Enclosed in waxy white sac
Name of nymphs
Ground pearls
Describe nymphs
Globular
Yellow purple shell
Describe cysts
.5-2 mm diameter
How do they over winter
As cysts
When do females mature
May when emerging from cysts
What happens after females emerge
After short mobile stage they cover their body in waxy filament 2-3 inches deep where they remain and lay eggs
When does egg laying take place
June and july
Hatching period
Extends into august
Generations
1
How do they feed
Nymphs suck sap from roots
Symptoms
Irregular yellow brown patches
Browns in summer
Dies in fall
Where are cysts located
Area between healthy and damaged grass