Pa. Braces For Tree Pest Onslaught WARREN (Warren Co.) was nearly four times greater than street » causing a s hot-hole effeoAs they They hatch during mid- to late thatof its better-known cousin, the adult of elm spanwonn mature, they eat all leaf material May. them begin to devour die gypsy "J oth - is a powdery white moth with a between the major veins, leaves of hardwood trees. In 1993, Unlike the gypsy moth, the wingspan of one to one-and-a-half Hoover said property owners they defoliated Pennsylvania elm spanwotm is a native spe- inches . In m i d -summer. the can take steps to protect their landscapes and forests to the tune c jes, said Greg Hoover, exten- females lay an average of 250 frees. “You should monitor your °f more thanl.2 million acres. tatC S oblong eggs in compact masses on landscape from mid-May through If the pest that comes to mind is C°»ege of Agricultural Science, the underside of twigs or branches early June for signs of elm span the gypsy modi caterpillar, think .It has been epidemic pcruxhcally or on tree trunks. The eggs are w °rm larvae.” he said. "Where again. The elm spanwonn has m Pennsylvania since 1931, but bright yellow.,™ whe n first Possible, prune small twigs that become the blest major threat to «J*y for more than one year at a m but dull u are infested with egg masses and the state si woodlands. The notice- frme. In the past, it was best or bn)wn in win destroy the eggs by burning or able defoliation it caused in 1993 known as a major pest of urban After they hatch in the Spring, buiying them. 8 _ /''v the destructive larvae grow to “If necessary, a registered apring L/D6II about two inches long and mimic insecticide can be applied when 1 ° » twigs. Most are dull or slate black l arv ae are small. Homeowners TTai-pa QL n A ‘ with a rust-colored head. Some of may want to contact a professional riOrSC iJIIOW |3o¥ the larvae may be light green with arborist to apply an insecticide, yellow heads. especially on large trees.” DALLAS (Luzerne Co.) —The On Sunday, the show begins at fecdona large varie . The current elm spanworm out- Ninth Annual Spring Classic 8 a.m. with English classes for all ty of haidwoods and shade trees break began in 1991. when the Open Horse Show will be held on ages. A wide variety of hunter although they prefer elm hickory’ P est defoliated 65,000 acres. May 7-8 at the Luzerne County classes, including pleasure and oak, red and sugar maple Ameri- mostl y Elk and McKean coun- Fairgrounds on Route 118 in over fence classes, will be held. and j,,’ ties. In 1992, it spread to Potter , 1U . e • I s^a^ C l P !. C^ urcCla i S ’ feeding on’the underside of leaves. County and defoUation increased The show will begin on Satur- ic will be held both days and a to more than 300,000 acres, day at 8 a.m., featuring a variety Super Horse Award will be given of western classes. Events include at the end of each day to the horse western pleasure, reining, trail and accumulating the most points gymkhana for all ages. throughout the day. jjim ■ PI P :■ WfSw& Aiy# ■■ jii«r^ 7 -' --v. ••: PO *V. Introducing the White Workhorse 6145. With a high torque rise 140 PTO hp Cummins engine and the most advanced power shift transmission ever put in a farm tractor. Just a tap of your finger gives you complete control of 18 forward speeds and 9 reverse. 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For example, a 16* grain body with tailgate and 4 sides weigh you any length or any side height up to 60”. • Double swinging hay • Diamond flooring hauling tailgate • Pull out panel tailgates • Barn door type tailgate • Any size grain chute • Slide out cattle chutes HEWEY WELDING Box 2312, RD4 Lebanon, PA 17042 (717)867-5222 Lancaster Fuming, Saturday, May 7, IM4-C5 By 1993, the outbreak extended across the northern third of Pen nsylvania from Sullivan and Brad ford counties in the east to Warren and Forest counties in the west. The damage reached as far south as Somerset County. Defoliation was visible from the air in 15 counties. Entomologists are looking to the elm spanworm’s natural ene mies to help control the pest “There are two tiny parasitic wasps that are known to suppress the elm spanworm in the egg state,” said Hoover. “If the para site population increases enough, these small beneficial insects can destroy 80 percent or more of the elm spanworm and cause a collap se of the outbreak. “But until the parasite popula tion catches up with the pest, it looks as though damage from the elm spanworm may be severe in 1994.” Iso available: We’ll build
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