P A C I F I C T R !•; V. A N P V I N K 



War on the Codlin Moth 



The season is very close al hand 

 when our apple and pear growers 

 nuist round up their shoulders, 

 buckle on their armor, or get out 

 the sprav pump, overhaul it and ^ee 

 that it is in '^roper working order 

 to commence the annual and costly 

 warfare on the codlin moth. There 

 is no shirking allowed here, if re- 

 sults are to be obtained. See that 

 the paris green is pure — is paris 

 green, and not some cheap concoc- 

 tion that will save the purchaser a 

 few cents in the buying and cost 

 him all his outlay of money, time 

 and crops in the using. If you 

 want fruit you have got to work for 

 it now, and use only such prepara- 

 tions as will reach your enemies 

 and deal with them effectively. 

 Having a good spray pump and 

 good material it is next neoe.ssary 

 to apply it properly and at the right 

 time. The spray should be mixed 

 according to the directions given 

 herewith and thoroughly applied. 

 See that every part of the upper 

 tree is well covered with the spray 

 and that no part escapes. See that 

 the mixture is kept constantly 

 stirred while using or the paris 

 green will gradually settle to the 

 bottom of the tank, and you might 

 as well spray with pure water and 

 expect results. Commence spraying 

 as soon as the little apples form, 

 and soon after the blossoms fall 

 from the tree. It is no use spray- 

 ing while the tree is in blossom or 

 until the fruit begins to form, but 

 the sooner it is done after that the 

 better. It was thought at one time 

 the eggs of the codlin moth were 

 laid in the blo.ssom and from there 

 found their way into the fruit. 

 Later investigations by entomolo- 

 gists have shown that the eggs are 

 deposited on the side of the little 

 apples and from thence the yovuig 

 worm finds its way into the fruit. 

 It is, therefore, useless to spray 

 until the fruit has fornied, but as 

 4he parent moth is on the look-out 



By JOHPM ISAAC 



for the young fruit, it is not very 

 long after it forms before her eggs 

 are deposited and the young worms 

 begin to burrow into a place of 

 safety, beyond the reach of spray 

 pump and Paris green If this 

 first brood are not caught they will 

 soon become the progenitors of a 

 second very many times more nu- 

 merous and much harder lo con- 

 trol. This is why the first spray- 

 ing should be done al the proper 

 time and be done thoroughh'. If 

 we can only reach all of the first 

 brood there will be no second one, 

 but with the oest work that can be 

 done some worms are sure to escape 

 and for this reason subsequent 

 sprayings are necessary. Paris 

 green placed where the voung 

 worms are compelled to eat at will 

 put an end to their career and stop 

 all future generations which they 

 might propagate. To the end, 

 therefore, that our readers may not 

 forget the time and the method, we 

 have taken this opportunity to call 

 th 'ir attention and give the for- 

 mula for using the poison herewith 

 The trees should not he sprayed 

 during a hot spell or north wind, or 

 when the trees are in bloom : 



Paris green (pure, to contain at least 

 50 per cent arsenious acid). . 1 ponnd 



Fresh lime pouii<ls 



Water 200 gallons 



Use no ammonia or soap. Make 

 the Paris green into a paste before 

 placing into spray tank, atid keep 

 constantly stirred while spraying. 

 Spray as soon as the blossoms drop, 

 and before the fruit turns down- 

 ward. A second application should 

 be made about sixteen days after 

 the first, and, where required, a 

 third and even fourth application 

 for late varieties, at three weeks in- 

 tervals. To make the Paris green 

 more insoluble, and thereby pre- 

 vent injury to the leaves, dissolve 

 six potiuds of fresh lime in water, 

 and, when the lime has settled, add 

 the water to the solution and keep 

 it constantly stirred. 



In orchards where the fruit is 

 affected with apple scab, the Paris 

 green can be added to a weak solu- 

 tion of Bordeaux mixture of 200 

 gallons. In buying Paris green, 

 growers should demand a guaran- 

 tee that it contains at least 50 per 

 cent arsenious acid. 



County Entomologist Ehrhoni 

 has been experimenting with tob- 

 acco powder for the peach borer and 

 has found it effective. This is one 

 of the worst pests the orchardists of 

 this part of the State have to con- 

 tend vv'ith, and it seems to be worse 

 in the Santa Clara valley than else- 

 where. The great difficulty' in com- 

 bating this pest ari.ses from the fact 

 that it works underground, and 

 under the bark of the tree, so that 

 it is almost necessary to destroy the 

 trees to get at it. In speaking of 

 his experiments with tobacco dust 

 Mr. Ehrhorn says that he applied it 

 to a few badly infested trees in the 

 spring, and on examining them in 

 the fall found but two borers in all 

 the six trees he had treated. He 

 used about half a pound to the tree, 

 and covered it over to prevent the 

 wind from carrying it way. The 

 ground around by the stem of the 

 tree became saturated with the tob- 

 acco juice and it penetrated into the 

 burrow of the borer. It will be a 

 great benefit to our orchardists if 

 Mr. Ehrhorn discovers some eflfec- 

 tive method of keeping this destruc- 

 tive pest in check. 



Don't Forget 



Wiien yonr windows brejlk, to 

 call on 



LOUIS F. EPPING 



and liave llieni repaired before they 

 fall ont. We also build Greenhouses 

 and make 



Art and Leaded Class 



which will help beautify your home, 

 (•all ns np. 



•piioM:, i;ast Hi. 



168 South Second SI. San Jose 



