1 nsoga 

 weed. 



or cruciferous weeds, and is weak against ragweed and smart- 



Diphenamid controls most of the weeds controlled by Dacthal* 

 and is more effective against ones that Dacthal* does not control 

 except galinsoga, and usually is longer lasting in its effective- 

 ness. It should not be used until plants are established (about 2 

 weeks after planting) or injury may result. It may temporarily 

 delay rooting of runners, but this should not affect yields. It 

 should not be used on 'Raritan' since injury may occur. A second 

 application may not be made within 6 months and it may not be ap- 

 plied within 60 days of harvest. 



Tenoran* should not be applied until plants are established 

 or injury may result. It may be applied either pre-emergence or 

 post-emergence when weeds are less than 2 inches tall and grasses 

 are less than 1/2 inch. It is weak against grasses, particularly 

 cis a post-emergence treatment, but controls most broadleafed weeds 

 including galinsoga. Not more than 2 applications may be made in 

 one year and it may not be applied within 60 days of harvest. 

 Early spring applications the year of harvest are reported to have 

 caused serious injury in New Jersey. Tenoran* remains effective 

 longer than other materials. Some growers apply it after culti- 

 vation and hoeing in late May or early June and obtain good con- 

 trol for the rest of the season. 



Cost of materials per application is roughly comparable, vary- 

 ing from $17.50 to $20.00 per acre (1972 prices) for the 3 mater- 

 ials. Regardless of cost considerations, perhaps the most impor- 

 tant argument in favor of chemical weed control in strawberries is 

 the difficulty of finding the time or labor to do the job by hand. 

 As one grower remarked recently, "I wouldn't be in the strawberry 

 business without weedkillers." 



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



MUMMY BERRY 



Domi ni c A. Mari ni 

 Regional Fruit & Vegetable Specialist 



Mummy berry, caused by the fungus Solerotin-ia vaaoinii-oorym- 

 bosi brought about losses in many cultivated blueberry plantings 

 during the 1972 season. Prolonged cool, wet weather last spring 

 provided ideal conditions for primary infection, the cause of the 

 leaf and twig blight stage which resembles frost injury, and of 

 secondary blossom infection which results in the mummified berries 

 from which the name is derived. 



Mummy berry is difficult 

 most blueberries are grown in 



to control in Massachusetts, where 

 sod. In New Jersey, where clean 



*Trade Name 



