LEAF SCALES

Plant Damage / Signs: Leaves have yellow spots General Leaf yellowing occurs Early leaf drop Insect / Signs: Scale appears as brown, red, white     or gray small swellings on leaves Note: Scale - there are two types of scale -     soft (unarmored) and hard (armored) Soft Scale: Fletcher, Lecanium, Wax Scales are examples. These scales do not have an armored coating and produce a sticky excretion, often resulting in a black fungal growth (sooty mold) on excretion. Hard Scale: Oystershell, Tea, Euonymus Scales are examples. These scales are coated with a hard covering (armor), and do not produce a sticky excretion, therefore no black fungal growth. Both scale types produce eggs that hatch into crawlers. These crawlers move about before settling to feed. Once settled, they no longer move.

Plants:  Many, but common on: Camellia Citrus Euonymus Hemlock Juniper Magnolia Pine:      Mugo      Ponderosa      Scotch Pittosporum Oleander Sweet Gum Timing: Growing season Generations / Year 1 to several