03 



was catcii ill some cases for s«'\<'ral inches, hut llir roots wore iiol 

 severed, as is the case when jxi'Ji!^^ i^^ atlackeil. The grubs appear 1o 

 prefer tlie outer tissue to the more lil)r()us and woody material within. 

 In a letter received from the owner December 22, 10(i:i, it is estimated 

 that 20 per cent of the trees have been destroyed. 



The eankerworm {Palearrifn rernaUt) occurs locall\' t liroiiicliout 

 the State, and dui'ing the past few years lias done a threat amount of 

 • hiniajje to apple orchards and in some sections the elm trees have 

 been defoliated. The prospect for a destructive brood last spring was 

 very promising, as many orchards contained large numbers of the 

 young larva'. Karly in May the temperature in many i)arts of the 

 State di()i)ped below the freezing point and in some places ice was 

 formed in the blossoms, so that a large percentage of the prospective 

 fruit crop was ruined. After this time few of the worms could be 

 found in many of tlie infested orchards, and as this is the testimony 

 of a large number of careful observers it is fair to presume that immy 

 of the §mall worms were killed by the cold weather. 



A general investigation of the eankerworm problem has brought 

 out the fact that the spring species i)redomi nates throughout the 

 State. The fall species {Anisopteryx poinetaria) is only knewn to 

 occur in two localities in Columbus, and in one of these colonies, 

 which is near the State university, the females were found depositing 

 their eggs November 23, 1903. 



The San Jose scale {Aspldiofiis perniciosus) continues to inflict seri- 

 ous injury to fruit and ornamental trees and shrubs, and is causing 

 large expenditures of both time and money by orchardists and land- 

 owners. It has to a large extent remained unchecked in cities and 

 towns, and many trees and shrubs are now in a dying condition as a 

 result of its attacks. 



During the past season the lime and sulphur washes have come 

 into prominence both experimentally and commercially. Treatment 

 of peach orchards with eitlu'r the California or the Oregon wash lias 

 given satisfactory results. In a few cases sliglit injury to the twigs 

 has been noticed, when the former wash was applied, about the time 

 that the l)uds were starting in the spring. Only a few apple orchards 

 have been sprayed with the.se wa.shes, but as a rule the scah' has ])een 

 reduced bj' their use. The cheapness and efficiency render them 

 tlesirable for spraying operations, and they will be tlie chief insecti- 

 cicU'S used against this insect during the coming year. 



A colony of the Asiatic ladybird {CJiiloconis siinili.s) was received 

 August 17, tlirough tlie courtesy of Dr. L. O. Howard, an<l the two 

 beetles that survived shipment were i)laced in a [)eacli orchard in 

 Clermont County, which was badly infested with the San Jose scale. 

 A hurried inspection October 2S revealed the presence of twelve 

 beetles, whicli shows that one generation has l)een produced. As 

 Clermont is one of the most southein <'ouiities in the State, it is hoju'd 



