. Cooperative economic insect report. Beneficial insects; Insect pests. Distribution: Canada (New Brunswick, Nova Scotia), Australia, Austria, Czechoslovakia, Denmark, England, Germany, Holland, Poland, USSR, Sweden, Switzerland, Finland, France, Hungary, Poland. Ireland, Japan, Norway, Belgium, Yugoslavia, Rumania, Hosts: Apple preferred. Pear, plum, quince sometimes attacked. Life History and Habits: In Nova Scotia, Canada, nymphs hatch when apple buds are about half open and enter terminals where they feed at the base of leaves and flower stalks. As nymphs approach maturity they move out an
. Cooperative economic insect report. Beneficial insects; Insect pests. Distribution: Canada (New Brunswick, Nova Scotia), Australia, Austria, Czechoslovakia, Denmark, England, Germany, Holland, Poland, USSR, Sweden, Switzerland, Finland, France, Hungary, Poland. Ireland, Japan, Norway, Belgium, Yugoslavia, Rumania, Hosts: Apple preferred. Pear, plum, quince sometimes attacked. Life History and Habits: In Nova Scotia, Canada, nymphs hatch when apple buds are about half open and enter terminals where they feed at the base of leaves and flower stalks. As nymphs approach maturity they move out and feed on fruit stems, leaf petioles and blades. Nymphal stages last from four to five weeks. Adults remain on the trees until late in the fall. They feed slightly but cause no apparent damage. Egg laying begins in September on the current season's growth, chiefly on fruit spurs. As many as 85 eggs have been observed around a single bud. On warm days adults jump rap- idly and take to flight when disturbed. The nymphs excrete large quantities of honeydew and the presence of this substance is an identifying characteristic of the insect's presence in an orchard. Description: Adult, in summer, pale green tinged with yellow. Eyes pale green, dark reddish brown at center. Ocelli bright orange-yellow. Antennae green at base, remainder yellowish brown to black on last two segments. Beak black at tip. Wings transparent, iridescent, veins of forewings yellowish. Tibial and tarsal spurs and claws jet black; legs lighter. Posterior margin of each abdominal segment except the last, orange- yellow. As the season progress, coloration changes, especially in the female. Generally the light colored membranes become more brilliant and dark chitinized portions more intense. Total length of body to tip of folded wing - to mm. Fifth-instar nymphs pale yellowish green, tip of abdomen orange to brown. Wing pads pale, dirty yellow. Eyes whitish with dark centers. Antennae dusky black at tip. Le
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Keywords: ., bookcentury1900, booksubjectbeneficialinsects, booksubjectinsect
