194 



Without doubt the worst insect attacking peach is Aegeria [Sanninoidea) < 

 exitiosa, Say (peach borer) and growers are greatly desirous of a 

 better method of control than that found in the practice of "boring" ; 

 thorough tests of various substances, particularly asphaltum, are 

 being carried out, but nothing better can yet be recommended ; a 

 special section of this report is devoted to these investigations. Ripe 

 grapes in some parts of the State were badly injured by wasps and 

 hornets. Vesjxi crabro, L., was found cutting open and feeding on 

 the flesh of seckel pears, and attacking apples after the pears were 

 harvested. Grapes thus attacked should be bagged with a paper 

 sack to each bunch, and the nests of the wasp sought out and destroyed. 

 Insects of special interest, either because new to New Jersey records 

 or because of the danger of their introduction, dealt with in this 

 report include an undetermined Buprestid borer in Rosa rugosa 

 nursery stock ; Hylurgus {Myelophilus) piniperda, L. (the pine 

 beetle) ; a sawfly, Kaliosysphinga dohrnii, Tischb., on alders ; and 

 a few notes on brown-tail and gypsy moths. Extensive details of 

 orchard, potato, and maize dusting (with numerous tables) conclude 

 this section of the report. 



ScHOEVERS (T. A. C). Een rupsenplaag in de aardbeiplanten in de 

 omgeving van Bev8rwi|k. [A caterpillar plague in the strawberry 

 grounds near Beverwijk.] — Tijdschr. Plant enzieJcten, Wageningen, 

 XX, no. 4, December 1914, pp. 97-106. 



For many years past the strawberry fields in the district about 10 miles 

 north of Haarlem, have been seriously damaged by caterpillars and in 

 the spring of 1914 complaints were sent to the Institute of Phytopatho- 

 logy at Wageningen. On account of the very great importance of the 

 industry in these parts, it was decided to conduct an investigation 

 into the matter. As far back as 1906, caterpillars had been received 

 from Beverwijk which proved to be those of Sparganothis {Oeno- 

 phthira) pilleriana, Schifl:'., but it was by no means certain that the 

 same pest had done the damage year after year since that time. It 

 was found that the strawberries planted in the summer of the previous 

 year suffered little or no damage, but that in the second and third 

 year it was very serious. The caterpillars begin by attacking the 

 leaves, which soon become bound together by a web ; these operations 

 are plainly visible about the middle of May. About this time the 

 plants come into bloom and both buds and flowers are devoured, 

 one-half or even two-thirds of the first blooms being destroyed. The 

 later blooms do not suffer quite so much. It was observed that one 

 grower who made a point of clearing the ground of all dried leaves and 

 rubbish during the winter suffered but little, whilst another who left 

 everything on the ground lost more than three times as much. Two 

 kinds of caterpillars were found, both belonging to the Tortricidae. 

 These were bred and the imagines were identified as Olethreutes urticana, 

 Hb., and 0. rooana, De Graaf, while another lot of green cater- 

 pillars yielded what, according to A. Brants, were Oxygrapha (Acalla) 

 schalleriana, L. ; no S.pilleriana were obtained. No data could be- 

 found in the literature on the subject as to the hibernating stage of Ole- 

 threutes, but it is probable that it winters either as a young caterpillar 



