-9- 



Unlidded northeastern crates are best stacked v;ith the lengthwise dimension 

 at right angles to the flow of air from the diffuser or duct openings. For e;:ample, 

 in a room X7ith a central ceiling duct do\m the middle of the room which delivers 

 air to the side walls from openings along the sides of the duct, boxes should be 

 placed lengthwise along the side walls. If this is done the air, as it moves 

 from the ceiling area into the side wall spaces, can pass through the openings 

 between the top and bottom of each box and the spaces at ends of each box left 

 open by the end cleats. In such a system an aisle beneath the duct serves as 

 a return air channel to the intake side of the diffuser. Of course, during 

 and after loading, the openings at the walls must be blocked off in such a 

 way that air can't move from the side wall spaces to the aisle without moving 

 through the stacks of bor.es. 



If no ducts are present nnd most of tlic air is delivered to the wall 

 oppositn the diffuser, the boxes should be stacked leai;,thwisc to the v/all 

 opposite the diffuser; in other words, in a fashion directly opposite to the 

 stacking method used where air is delivered to the side vjalls from a duct. 

 If an aisle is left running at right angles to the diffuser, it obviously must 

 be blocked off as well as the spaces on the side walls. 



Probably this discussion is somewhat difficult to follow in the absence of a 

 sketch of the room layout. Therefore, it is suggested that a sketch be made of 

 the rooms involved and their air distribution system, so that the air movement 

 in the room can be visualized. Then by appreciating the fact that air will 

 move most readily along the path of least resistance, it may be possible to set 

 up a stacking arrangement that will improve the rate of air circulation through 

 the stacks of apples. Any improvements that can be made should be of help in 

 prolonging the keeping quality of the fruit. 



F. U. Southwick 



I I I I I I I I I I I I I I I I 



SOIL FUIIIGATIOK FOR BLACK ROOT OF STRAlvBERRIES 



The time iJs at hand to fumigate the soil for next year's strawberry bed. 

 The question is v/hether to fumigate or not. VJill it pay? There are two ways 

 of approaching an answer. The first is the way \;e handle the sickness problem. 

 Most of us don't call the doctor till we are sick.. The the doctor prescribes 

 some medicine and usually gets results. Ue can approach the soil fumigation 

 problem in the same way. I'e can wait till there are symptoms of black root 

 in a field, then, before the field is used for strawberries again, fumigate. 

 This v/ould be called, at least by some people, the more practical, hard 

 headed approach. 



The second method is the insurance approach. There is black root in the 

 State. There is a possibility of bringing it in on infected plants. At least 

 one of the causal organisms has a wide host range so that it may be carried 

 over in these even though strav;berries are not grov.ni. Therefore, we could 

 fumigate to ward off trouble before it starts. A fev; growers are convinced 

 that regular fumigation as insurance pays. Most are v/aiting till trouble 

 starts. 



