. Gli agricoltori' i nemici e i loro rimedi [microformati]. Parassiti; parassiti agricoli; parassiti agricoli; Animaux et plantes nuisibles, Lutte contre les; Ennemis des Cultures; Ennemis des Cultures, Lutte contre les. 129. (Fio. 34a.) (Via. 34b.) liJHet esimo npiienr: un secondo raccolto di egjp" Ih 1hI"1. iiiuI tlif njiine round in r">R)(>nt"Hl: ma casse covata wcond fare"H" non rilasciano dalla pupa fino alla f"illowlnK Kprln". I)erf"t fenmie è mostrato nella figura 34ii. il llneH showhiK il lutuiil Hlze. ThoHe che ricevere boccole di ribes da una distanza. Al fine di avoUl l introduzione di questo insetto in

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. Farmers' foes and their remedies [microform]. Pests; Agricultural pests; Agricultural pests; Animaux et plantes nuisibles, Lutte contre les; Ennemis des cultures; Ennemis des cultures, Lutte contre les. 129. (Fio. 34a.) (Via. 34b.) liJHet'tH npiienr: a second crop of egjp» Ih 1hI«1. iiiuI tlif njiine round In r«>r)(>nt«Hl: but tills wcond brood do«H» not Issue from the pupa until the f«illowlnK Kprln«. The i)erf«t fenmie Is shown In Figure 34ii. the llneH showhiK the lutuiil Hlze. ThoHe who receive currant bushes from a distance. In order to avoUl the introduction of this Insect In the pupa state, shoulil carefully wash the ntots of the plants and bum whatever may be washed from them. Rvmcdica.—yyhea the worms are not cheiked. they swrn strip both the ciiiruii* and ii0O8t'b«?rry bushes of their leaves, apd the partly-Krown fruit shrivels and dies. The Insect threatenetl to put ;in en.l to cuiiant culture In localities where It is an Imimrtant croi), until an effective reminly was made known. By the prompt use of white hellebore the lnse<t may be sulMlued with but little trouble, and the crop saved. Some paiMTS sjM'ak of the use of ••hellebore/' and It is necessary to 8i»eclfy white hellebore {Virutium album), which Is an entirely different drug from the black hellelMire {IhUv. horua nigcr). The powdered root as sold at the drug stores. Is of a light greenish-yellow colour, and excites violent snet^zlng when taken Into the nostrils; hence care should be observed in handling It. The powder nniy Iw sprlnkleil uiwn the bushes by means of a tin sifter, but this Is often attended by unpleasant sneezing, and Is not so I'conomlcal or eflfwtlve as to apply It mixed with water. Place a henttlug teaspot may be useil. The object should be to wet every leaf; hence much force Is not needetl. In a few days, if any wonns are found to have e8cai)ed. tlie application should be re|»eate«l; rarely are more than two doses needed. The use of white helleliore

Parole chiave associate all'immagine

• bo
• bookcentury1900
• bookdecade1900
• booksubjectagriculturalpests