CALENDAR 



April 



24 h^ew Hampshire State FFA 



Competitions; UNH, Durham; for 



information: David Howell at 



(603)862-1760. 



15 -October 11 "Floriade" — the 



World Horticultural Exhibition, 



The Hague/Zoetermeer, Holland; 



for information: 3179681992. 



June 



10 NHPGA Twilight Meeting; 



Longacre's Nursery Center, 220 



Mechanic Street, Lebanon, NH; 



for information: (603) 448-6110. 



July 



11-15 0/iio Florists' International 

 Floriculture Industry Short Course, 

 Cincinnati Convention Center, 

 Cincinnati, OH; for information: 

 (614) 487-1117; fax (614) 487-1216. 



August 



5 New England Nurserymen's Asso- 

 ciation Summer Meeting, Stewart's 

 Nursery, Turners Falls, MA; for 

 information: (617) 964-8209. 

 12 The New Hampshire Plant 

 Growers' Association Summer 

 Meeting; Jolly Farmer, East 

 Lempster, NH; for information: 

 Chris Robarge at (603) 862-1074. 



12 New HampshirefVermont 

 Telaflora Unit Summer Meeting; 

 Jolly Farmer, East Lempster, 

 NH; for information: Everett 

 Aldrich at (603) 444-2201. 

 31 -September 4 Third International 

 Geranium Conference , Hans 

 Christian Anderson Conference 

 Center, Odense, Denmark; for 

 information: Richard Craig (at 

 Penn State) at (814) 863-2191. 



October 



19-21 The J 992 New England 

 Greenhouse Conference, Sheraton 

 Sturbridge Inn, Sturbridge, MA; 

 for information: Richard 

 Emerson at (603) 329-5525. 



November 



5- 7 The 1992 International Plug 

 Conference, Buena Vista Palace, 

 Orlando, FL; for information: Julie 

 A. Stewart at (708) 208-9080. 



Looking Ahead 



February 3-4, 1993 New England 



Grows '93 ; Hynes Convention 



Center, Boston, MA; for 



information: Virginia Wood at 



(617)964-8209. 



Editor' 



EDITOR: Roben Parker 



DESIGN: ]oni Doherty C)esign Studio 



ILLUSTRATION: Heather Miller 



Note: In the FebruarylMarch issue, we neglected to mention that the 



iiluitrations u/ere done bji Kajd Ghoshroy. *• 



N S I D E 



3 

 Forum 



From the Board 



New Hampshire News 



11 

 Elsewhere in Che News 



13 



PEAR THRIPS 



John Weaver 



15 



GROWING ROSES 

 George Marael 



18 

 Member Profile 



WINDHAM NURSERIES 



23 



ASIAN GYPSY MOTH 

 Thomas ]. Durkis 



25 



GROUND DEMOLITION 

 WOOD 



Francis R. Gaum 

 27 



CONSERVE TO PRESERVE 



YOUR BUSINESS 



Margaret Pratt Hagen 



The Plamsman is published in early Febru- 

 ary, April, June, August, October, and 

 December with copy deadlines being the 

 5th of each prior month. While camera- 

 ready ads are preferred, set-up assistance is 

 available at a nominal fee. Free classified 

 advertising is offered as a member service. 

 We will carry a short message (no artwork 

 or logos) for one or two issues of The 

 Plantsman. 



AD SIZE 6x Ix 



3 3/8" w X 2 3/8"h $120 $30 



3 3/8" w X 4 7/8"h $160 $40 



7" w X 2 3/8"h $160 $40 



7" w X 4 7/8"h $250 $50 



7" w X 10 "h $400 $100 



For further information, please 

 the editor: Robert Parker at the UNH 

 Research Greenhouses, Durham, NH 

 03824, (603)862-2061; or PO Box 5, 

 Newfields, NH 03856, (603)778-8353. 



April/ May 1992 1 



