Pp. 24. Professor Lake's experiments upon spraying apples and pears with London purple for the codlin moth, give some interesting results. Four sprayings were given, the last one being August 12. The treatment had a decided benefit until " the latter part of August, but from that time to the date of picking, October 1, the affected fruit increased so rapidly that the final results on some trees of both sprayed and unsprayed were about the same. We had considered it unsafe to spray later than August 12, but the results would indicate that had we omitted the first spraying and given another in the latter part of August, effective work would have been done." The first spraying, immediately after the falling of the blossoms, seemed to accomplish little or no good, as "observations made for two weeks after the first spraying failed to give any indications of the moth's work in the fruit of either sprayed or unsprayed trees." The codlin moth must behave differently in Oregon than in the eastern states.

The summary of the season's work is as follows: "1. Early spraying - just after the blossoms fall - is useless. 2. A mixture of 6 ounces of London purple to a hundred gallons of water is better than a stronger one. 3. The mixture should be kept thoroughly stirred while being used. 4. Young and vigorous foliage is more susceptible to injury by burning from the application of ar-senites than is older or less vigorous foliage. 5. Spraying as late as September 1, or even later on winter apples, is desirable as far as fighting the moth is concerned. (There may be some danger in such late spraying, how-ever, and this is one phase of the subject for next year's work). 6. All fallen apples that are affected should be destroyed daily. 7. The cost per tree for each spraying will average, in small orchards, about three cents. In larger orchards it would be less".

Seed Warranty.

Spraying In Oregon.

Woolly aphis upon apple trees was destroyed by a spray of lye-water - one pound of con. centrated lye to three gallons of water. Kerosene emulsion was not found to be a satisfactory remedy.