19 16 



BETTER FRUIT 



Page 2Q 



leaf blister mite, the cottony-maple 

 scale, the San Jose scale and oyster- 

 shell scale. The blister mite is not a 

 true insect. It is related to the spiders, 

 is very minute, and can be readily con- 

 trolled by proper spraying. The mite 

 attacks both fruit and foliage, mal- 

 forming both. During the early .sum- 

 mer infested leaves show puffy, patch- 

 like spots on the under and ujiper sur- 

 faces which later in the season turn 

 reddish-brown. The injury to fi-uit is 

 of much the same order, destroying its 

 marketability. 



The period during which control 

 measures can be satisfactorilx- api)lied 

 is very limited. The mites over-winter 

 underneath the bud scales in great 

 numbers and are therefore out of 

 reach of sprays if applied too early. 

 As soon as the leaves start they inune- 

 deiately burrow into the leaf tissues 

 and are soon again protected from a 

 contact with spray. In view of these 

 facts it is necessary to watch the 

 growth of the trees very critically and 

 make the ai)plications as soon as most 

 of the buds have bursted, but before 

 the leaves unfold. On account of the 

 great range in elevation in the valley 

 and the resulting differences in time 

 at which trees come into foliage it will 

 be impossible to give a definite rec- 

 ommendation as to the exact time to 

 maek the api)lication. Growers should 

 use their own judgment in this matter 

 and thoroughly spray the trees with a 

 good pressure. I'se lime-sulphur 1-10, 

 at which strength the San Jose and 

 oyster-shell scale will be destroyed. 



The cottony-maple scale is of very 

 limited distribution in the valley and 

 will usually be found attacking the 

 Winted Nelis variety. For control use 

 miscible oil 8 gallons to 100 gallons of 

 water. This should be applied while 

 the trees are dormant. 



Control of Insect Pests of Apple.^ 

 There are several insect pests of the 

 apple which demand attention this 

 month. These are the leaf-roller, 

 woolly aphis, San Jose scale and the 

 oyster-shell scale. The scale insects 

 arc not generally distributed in all of 

 the orchards in the valley and aijplica- 

 tions are recommended only in or- 

 chards where they are troublesome. 

 The four insects mentioned must all be 

 controlled during the dormant season, 

 as material applied after the foliage is 

 out cannot be used strong enough to 

 kill the insects wi'hout seriously burn- 

 ing foliage and developing fruit. 



For the leaf-roller and the woolly 

 aphis miscible oils will be found to 

 give the greatest degree of satisfaction. 

 All orchardists in the Pine Grove sec- 

 tion are urged to use oil this spring 

 to destroy the egg masses of the leat'- 

 i-ollcr. A thoi-ough spraying foi- this 

 insect will incidentally destroy all of 

 llie woolly ai)liis that are hit. In con- 

 trolling the leaf-roller spraying is 

 directed toward the destruction of the 

 egg masses which will be found in 

 brownish, i)a(l-like patches on trunk, 

 limbs and even the smaller twigs of 

 not only apple but pear, cherry, plum 

 and peach. In view of the fact tliat 



Good harness deserves 

 good care; keep the 

 trimmings clean 

 and bright with 



Old Dutch 



Helps you up 

 "On High" 



ed Crown 



'the Gasoline cffQualiiy 



puts the "liop" into your car, gives you ttie 

 quick "get-away", and tlie "pick-up" on tlie 

 hills. It's because Red Crown is the unmixed, 

 refinery gas, with extra power in every drop. 

 At dealers everywhere and at our SERVICE 

 STATIONS. 



Standard Oil Company 



iCalifornia) 



I RHODES DOCBLE CUT 

 PRUNING SHEAR 



RHODES MFQ. CO., 

 •■0 3. DIVISION AVB . QRAND RAPIDS. niCIt 



yHE onl, 

 pruner 

 made tnat cuti 

 from both sides of 

 the limb and does not 

 bruise the bark. Made ia 

 ■11 (lyles and sizes. W* 

 pay Elxpress charges 

 on all orders. 

 Write for 

 circular and 

 prices. 



Oregon Nursery Company 



ORENCO, OREGON 



Extensive g^rowers of all lines of Fruit, Nut and Shade Trees, Evergreens, 

 Flowering Shrubs, Vines, Roses, etc. Introducers of the VROOMAN 

 FRANQUETTE walnut, recognized as the best walnut. Our large 

 complete stock consists of varieties suitable for every kind of climate. 

 Write us about your wants before buying. 



WHEN' WRITING AnVEBTISr.KS MENTION BETTER FRflT 



