- 9 



Common Name (Trade Name) Shelf Life 

 simazine,WP (Princep) Indefinite 



ammonium sulfamate, sol' 

 uble salt (Ammate X) 



carbaryl.WP (Sevin) 



At least 2 

 years 



several 

 years 



Comments 



Has been stored as long 

 as 9 years under good 

 conditions . 



No low temperature limit 

 but keep dry and under 

 100°F. 



Wettable powder formula- 

 tions have been stored 

 up to 5 years without 

 loss of effectiveness. 



captan,WP 

 paraquat, liquid 

 (Paraquat CL) 

 captafol, flowable 

 (Difolatan) 



3 years 

 Indefinite 



at least 

 3 years 



Settling may occur in 

 flowable formulations. 



It is important to shake 

 the container in order to 

 re-suspend components be- 

 fore using. 

 Under normal storage. 

 Extremely stable, no prob- 

 lems with storage. 

 After 2 years will tend 

 to settle, needs good 

 agitation. 



*************** 



EUROPEAN APPLE SAWFLY: BIOLOGY AND DEVELOPMENT 

 OF AN ADULT MONITORING TRAP 



Elizabeth D. Owens and Ronald J. Prokopy 

 Department of Entomology 



One of Massachusetts' more serious apple insect pests, the 

 European Apple Sawfly (EAS) , is a recent invader of North America. 

 It was first discovered on Long Island in 1939, and may have been 

 introduced there in the cocoon stage in root balls of ornamental 

 crab apple trees imported from Europe. Since its introduction, it 

 has spread through many of the fruit growing areas of the Northeast 

 and is particularly troublesome in the New England states. 



EAS adults first appear in apple orchards during full pink. 

 The small, inconspicuous, wasp-like insect is not often observed 

 by orchardists. When seen among the open flowers, it appears lit- 

 tle different from other small insect pollinators, being dark-bod- 

 ied with a yellowish head and underside, and having clear wings. 



