398 THE MONTHLY BULLETIN. 



cases Farm Advisers J. W. Mills and H. A. Baade have very kindly rendered a 

 similar report to that received from the commissioners. Mr. Butler has recently 

 been appointed commissioner in Napa and we hope to soon have Solano County 

 again represented by a commissioner. 



A new feature of the report printed this season is a state average condition. 

 This average is based on the relative production of each fruit in the different 

 counties, and is therefore a true state average. Another year an interesting 

 comparison can be made between the state average at any given time during the 

 season and the same time the previous season. 



In addition to the condition report issued, a revised table of the acreage of each 

 fruit, both bearing and nonbearing. is printed for each county. An attempt will be 

 made to secure for the first time this season accurate figures on the production of 

 every fruit grown in the counties represented in our crop report. If this attempt 

 succeeds and similar figures can be secured each season for a series of years, the 

 condition report will be more and more valuable as figures can be given showing 

 what constitutes a normal crop. G. H. H. 



Lemon Outlook Better Than First Reported. 



The California Fruit Growers Exchange, through Assistant Manager Prezell. 

 has reported to this office that the lemon trees have bloomed since the heat wave 

 and from March on fruit from this bloom will be produced. According to Mr. 

 Drezell pickines during the early months of 101S will be extremely light, as the 

 fruit that would mature then was very small in size at the time of the excessive 

 heat, and dropped off to a great extent except in districts verv near to the coast. 



G. H. H. 



Spray Injury. 



There appears in this numher of the Bulletin an article on injury to apples from 

 sulphur sprays, by County Horticultural Inspector .1. B. Hundley of Tucaipa. 

 This article brings out very clearly the fact that under certain climatic conditions, 

 and when trees are low in vitality, injury may result that is very severe. In case 

 of injury there is usually a correlated complaint in the nature of an attack upon 

 certain persons who advised the use of the spray which caused the injury. 

 Naturally it is an unpleasant experience, to say the least, to have a crop of fruit 

 badly injured in this manner: but the attacks upon those who have given the best 

 information available are often unwarranted. Spraying with any insecticide or 

 fungicide is more or less unsafe, especially during the summer season, and injury 

 from Bordeaux mixture, arsenate of lead. lime sulphur, etc., frequently takes place. 

 Such injury is no argument against spraying without which we could not possibly 

 grow good fruit, but rather is an argument in favor of every possible precautionary 

 measure. The injury described in Mr. Hundley's paper could not have been pre- 

 vented because the excessive heat was equally responsible with the sulphur. The 

 combination which resulted in so much injury might not happen again for years. 

 There is a well-founded theory that trees develop immunity to sulphur injury as 

 the season progresses providing that they have been treated early in the season 

 with one or more lighter sprays. In other words the maximum strength of a 

 sulphur spray if applied to trees during the summer, that have not been previously 

 sprayed with a lighter dosage, are very apt to be injured. 



Frequently the injury, as in the case described by Mr. Hundley at Tucaipa. 

 seems greatest immediately after the burn shows on the foliage and fruit. Later 

 it may be discovered that the loss of all the injured fruit was a means of thinning 

 the crop with a resultant good effect. G. P. W. 



Horticultural Quarantine and Citrus Canker. 



It would be hard indeed to find a better instance of the value of an adequate 

 quarantine service, with an intelligent and efficient inspection of incoming horticul- 

 tural products than is afforded by some of the southern states today engaged as they 

 are, in the herculean task of eradicating citrus canker. In Florida since this disease 

 was first discovered and recognized a large force of trained inspectors has been con- 

 stantly employed in the groves and nurseries. To organize, train and maintain a 

 force of upwards of three hundred men, each man a specialist, has been and is no 

 small task and is a feature of the work in Florida of which any state might well feel 

 proud. 



