favorable weather conditior.s, bu\: uore often an unsatisfactory grovrth, which 

 ifjajf have resulted from raouse injury, is erroneously charged to the oil spray. 



Tv/o ty;^;es of oil injury r.iay occur. (l) A distinct burning of 

 the tips of the leaves in opening buds, and (2) The killing of the dorn^.ant 

 leaf buds on one year old wood, such as terminals and waterspouts. The first 

 type of injury is seldom serious unless the flower buds are burned. It is 

 most likely to occur v/hen natari^ils for strictly dornairfc application, such 

 as the dinitro compounds or strong coal tar oils, are applied in the delayed 

 dor' .ant period. 



The second type of injury rnay result fror.i over-sprayxng while 

 atteiT.pting to ^et thorough coverage in the v/ind, froi,: too great concentration 

 of the toxic ingredient such as dinitro conpounds, and fron freezing weather 

 soon a.fter application. This typo of injury nay cause r.any v/hip-like tvags 

 with fev; if aiiy leaves oxco^.t c.t the tip, followed the next season by many 

 fruit spurs 8 to 15 inches long with fruit buds at the tip only, instead of 

 the normal fruit spurs 2 to 4 inches iri length. 



vV. D. Vfliitcor.ib 



N ew York Snt ornologist .SJCpeGts lieB.yy_ J.uno_ 3_e_et_l_e_ Fli£ht_ .Th_is_ Y_®?-il 



J. A. ilvans, 3xt3nsiGn iiintor.iologist of Cornell University, in- 

 cludes this statei.-.ent in his latest '.7eekly News Let'^er concerning insect 

 pests; 



"1940 is the year for anotiier big June beetle flight in many 

 parts of ifev/York. Counts of overwintering beetles in the soil have shovm 

 that as many as 100,000 per acre are present in some areas. June beetles 

 fly in Llay, June, and July and feed on the foliage of oak, elm, poplar, birch 

 or willow. Late in June they begin depositing eggs in sod land. In about 

 thrue weeks these oggs hatch into grubs vjhich feed on the grass roots f.r 

 parts of three years before ;^ reducing anotiior generation of beetles. Great- 

 est damage by the gi'ubs is done the year after beetle flight. The m.ost se- 

 vere daiiiage occurs when potatoes, cor;-, or other row crops are planted on 

 land that was in sod during the year of beetle flight. Therefore, in grubby 

 areas laiid to be used for such crop'S next year should be kept out of sod this 

 year if possible. Investigations m other states and in Canada indicate that 

 land planted to sweet clover, alfalfa, alsike, eaid possibly other legumes, is 

 unattractive to the egg laying beetles. Land occu^ded by a good stand of 

 such legumes this year can probably be safely used for row crops next year 

 so far as grub injury is concerned." 



