J3- 



The following modifications in conti'ol are recommended for these individuals i 



"If snow and freezing weather continues, use a grain (stean crushed) 

 or rolled oats bait. Apple bait drops in acceptance after snow is on the 

 ground. It is easiwst to use ordinary uncooked breakfast rolled oats to 

 which a small amount of bacon grease or light grade mineral oil has been added. 

 Thu oil will nuke poison stick and will keep the baits in butter condition, 

 but don't use too much. Sprinkle the rod^^nticide over this mixture and stir 

 until tht- bait is uniformly light gray in color. Don't use too much poison. 



"Just before the snow has all melted (down to an inch or two) is the 

 best time for orchardists to check mouse activity. Fresh trails and air holes 

 will readily stand out. Teaspoon quantities of the grain bait should be placed 

 in these trails, air holes and at the bases of trees where activity is noticed. 



"Early djimage is already extensive and there are heavy mouse popula- 

 tions in all sections of the state. It is therefore important to stress con- 

 trol vrork at every opportunity." 



Insecticides for Control of Oriental Fruit Moth 



Recent tests vdth insecticides for control of the Oriental Fruit Moth 

 in several of the peach-growing ictates, have shown some promise. In Illinoio, 

 best results thus far have been secured from the use of an oil-dust. Such a 

 dust has given as high as 60 to QOfa control v;hen properly applied. To get n-cod 

 control it is necessary that the trees be thoroughly dusted and that applic-^- 

 tion be timely. Best results have been secured by 4 applications at 5-day 

 intervals beginning approximately 3 weeks before harvest. 



The formula iihich has proved most effective is sulfur 60;^, talc 35/, 

 and oil 5/o (figured on a weight basis). The ingredients must be thoroughly 

 mixed in a dust mixer. Simply stirring the materials together will not make 

 a satisfactory oil-dust. Lime-oil sprays have not proved as satisfactory as 

 dusts, and when sulfur is used during the same pt<riod, a black, gummy deposit 

 is laft on thu surface of the fruit. 



Definite recommendations cannot be made fuY Massachusetts growers 

 until thii above dust materials huvo been tested under our conditions. 



A. !• Bourne 



A Fertilizer Program for 1939 



Y;hat should be used for orchard fertilizers in 1939? The only general 

 rule is that there is no one fertilizer formula that is best and most economical 

 for all orchards, a second rule that usually applies is that nitrogen is needud 

 especially in sod orchards. In our orchards at the College we are satisfied 

 that long continufcid liberal applications of nitrogen are not as effective as 

 could be v/ished. Potash must sooner or later be added to the nitrogen. Hov; 

 generally this is true in other orchards v/e have no means of knowing. 'We have 

 as yet no convincing evidence that the addition of phosphorus is beneficial to 

 the tree although it does aid the growth of grass and cover crops. If your 

 trees are grov/ing and bearing v/ell, continue as you have in the past. If growth 

 is poor and foliage scanty small and yellowish, use more nitrogen, up to 10 or 



