REPORT OF THE STATE ENTOMOLOGIST 1916 73 



Spraying with a poison, such as arsenate of lead, just as the webs 

 arc beginning to form has given excellent results, according to 

 Professor Parrot t. 



Carrot rust fly (P s i 1 a rosae Linn.). A parsnip infested with 

 the larvae of this insect was received from Hempstead, N. Y., the 

 last of July. This pest was first t brought to our notice December 

 30, iqoi, and a detailed account of the insect will be found in Museum 

 Bulletin 64, pages 99-103. 



Apparently this species has not become excessively abundant, 

 since it has been brought to attention only occasionally, though it 

 has been reported during the last few years as being abundant and 

 injurious in the vicinity of Rochester. 



A rotation of crops planned so as to plant those susceptible to 

 attack by this insect on ground remote from that which may have 

 become infested in earlier years, is one of the best protective measures. 

 This should be supplemented by late sowing whenever that is prac- 

 tical and, if necessary, the use of a repellent, such as a carbolic soap 

 wash during June at the time the flies are abroad and deposit their 

 eggs. 



European mole cricket (Gryllotalpa gryllotalpa 

 Linn.). A living specimen of this insect was received early in the 

 spring, accompanied by the statement that it had been captured 

 in the vicinity of Buffalo on a shipment of mixed ornamental shrubs 

 from Holland. This is a well-known species recorded as occurring 

 throughout Europe and being abundant in France, often causing 

 considerable damage to gardens. It has recently become established 

 in a New Jersey locality where similar shipments are received annu- 

 ally. The species was undoubtedly brought into New Jersey with 

 imported nursery stock and has become so abundant locally that 

 systematic efforts were necessary to reduce its numbers, 20,000, 

 including eggs, having been destroyed in one year. 



The European mole cricket is a moderately stout, dark brown, 

 frequently wingless insect with a length about if inches and easily 

 distinguished from our common crickets and their allies by the 

 short legs and especially the heavy forelegs with the fmgerlike 

 extensions admirably adapting it to burrowing in the soil. It is 

 very similar to our native northern mole cricket, Gryllotalpa 

 boreal is Burm., a species widely distributed and occasionally 

 found in small numbers, especially in the moist soil along streams 

 and ponds. This European pest is more likely to become abundant 

 in moderately heavy, rich garden land. It is recorded as feeding 

 upon vegetable matter and as causing considerable damage because 



