Eighth Report of the State Ejstomologist. 253 



emtly scattered over tlie plants by using an old broom for a duster, 

 or a Paris-green sifter. With, a pailful of the lime, a man could 

 in a short time dust an acre of asparagus. It could best be 

 applied in the morning wkile the dew is on, for then a portion will 

 adhere to the plants as well as to the grubs, and during the day or 

 days following, it will be constantly dropping down or blowing 

 about among the leaves and branclies, thereby making the escape 

 of any of the larva? all the more uncertain. 



For the past sixteen years, INIr. Fuller had, according to his 

 statement, used lime as described, upon his asparagus beds, to 

 keep the insect in question in check, and it has done it so effectu- 

 ally that about one application every alternate season was suffi- 

 cient. Not only is lime cheap and readily procurable everywhere, 

 but it is of benefit to the asparagus roots. It has also tke addi- 

 tional merit as an insecticide, that it can be used upon tke young 

 plants while they are being cut for market, for tke destruction 

 of tke first brood of larva? wkile Paris green or London purple may 

 not safely be employed. 



The Grapevine " Theips." 

 Frequent complaints are made of tke damage done to grape- 

 vines, from an attack ui)on tkeir leaves by tke " Tkrip®." This is a 

 popular name — but an incorrect one as will be shown kereafter — 

 wkick kas obtained widespread currency among vine growers for 

 some small (about an eigktk of an inck long), slender, spindle- 

 skaped, parti-colored leaf-koppers, wkick are very destructive to 

 the foliage of grapevines. They abound upon tke leaves in tkeir 

 three stages of larva, pupa, and perfect insect, in eack of wkick 

 tkey are injurious. Tkeir injury to tke leaves is caused by punc- 

 turing tkem witk their beak or proboscis and feeding upon tke sap. 

 Tkey ai'e usually to be found upon tke under surface of tke leaves. 

 Tke punctures first produce small discolored spots, wkick are multi- 

 plied over tke surface, and rapidly . increase in size by tkeir run- 

 ning togetker and by tke greater suctorial i)Ower of tke growing 

 insect. Later tkey become large brown blotokes, wkick, if tke 

 insects are numerous, extend over and embrace tke entire leaf, 

 causing it to dry, — appearing as if scorcked by fire, — to die, and 

 fall from tke vine. As a consequence of tkis partial defoliation, 



