weak lateral branch, 

 son or in the summer 

 and a quick hand can 



Check Your Trees 



This can be done either in 



A keen eye can catch what 

 correct it before it is too 



the dormant sea- 

 should be done 

 1 ate . 



old trees 

 case, the 

 Remove the 

 shovels of 

 the soil. 



Grass and weeds next to the trunk of young and 



can set up a condition favorable to collar rot. In this 

 trunk near the ground line remains moist 24 hours a day, 

 grass, weeds and decayed matter and then put a few 

 coarse gravel or pea gravel around the trunk and top of 

 Do not make a saucer around the trunk. 



Soils high in clay are more prone to collar rot so avoid sites 

 having high clay content. Rootstocks vary in tolerance to collar 

 rot; however, inadequate orchard management can lead to trouble 

 with both vigorous and dwarfing apple rootstocks. M. 7 is appa- 

 rently more resistant to collar rot than MM. 106. However, root- 

 stocks (such as M. 7, 9, and 26) which are budded high and planted 

 deeper in the orchard require extra care around the trunk base. 

 Furthermore, best insurance against problems of collar rot is to 

 choose (if possible) a well-drained sandy loam as the site. 



Phy thoph thora cactorum is one name associated with other factors 



' col 1 ar rot 



crown rot ' , ' root rot 



and winter injury, but all are not the 



and often referred to as 

 ' trunk rot ' , 'bark rot ' , 

 same. 



Factors that may be associated with collar rot are extreme 

 low temperature at various times during the winter, and also, fluc- 

 tuating or sudden changes in temperatures. 



A white quick drying outdoor latex paint applied to the lower 

 tree trunk will reduce temperature changes and lessen the chances 

 of collar rot infections. 



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



POMOLOGICAL PARAGRAPH 



Firmness benefits from Alar: 



a 1-1 



c a t i 



This 



past 



orcha 



were 



On bo 



fruit 



CA St 



ing d 



check 



b fi 

 n of 

 assu 

 summ 

 rd w 

 harv 

 th t 

 s we 

 orag 

 ates 

 f ru 



rmne 

 Ala 

 mpti 

 er w 

 ith 

 este 

 he e 

 re 1 

 e i n 

 wer 

 i ts . 



ss benef 

 r-85* at 

 on is b a 

 hich inv 

 Alar-85* 

 d either 

 a r 1 i e r a 

 -lb f i rm 

 early M 

 e 0.9 an 



i t on 



the 

 sed 

 ol ved 

 . Th 

 Sept 

 nd 1 a 

 er th 

 ay, 1 

 d 0.6 



It 



'Mcln 



rate o 



n a tr 



spray 



e tree 



ember 



ter ha 



an the 



973, t 



lbs f 



appears that growers might expect 

 tosh' apples from a mid-July appli- 

 f 1-lb per 100 gallons of water, 

 ial conducted in 13 orchards this 

 ing one side of 2 trees in each 

 s were sprayed on the same date and 

 19 or 20, and September 27, 1972. 

 rvest dates, the Alar-85* sprayed 



check fruits. When removed from 

 he Alar-85* fruit from the 2 pick- 

 irmer, respectively, than the 



*Trade name. 



