. Insetti pregiudizievoli e uso di insetticidi [microforme] : un nuovo manuale descrittivo sugli insetti nocivi, con metodi per la loro repressione . Fig. 104. -vitigno piramidale-viteCaterpillar. FRUTTA PICCOLA. 127 ali di Fore marrone scuro con tonalità più chiare di marrone e con linee d'onda e punti di colore biancastro opaco. Ali di rovina bruna ramata brillante orrossastra. Rimedi. - Prof. C. H. Feruald (Hatch Exp. Sta. Boll. No. 12)consiglia di raccogliere e straricarsi alberi infestati o viti. I catei-pilastri alimentare sulla mela, susina, lampone, pioppo, ecc. LA FALDA UVA-BERRY. {JEudemis hotrana.) Le depredazioni di questo io

• Collaboratore: Reading Room 2020 / Alamy Foto Stock
• ID dell’immagine: 2CHAKK4
• Dimensioni dei file: 7,2 MB (274,5 KB Download compresso)
• Liberatorie: Modello - no | Proprietà - no
• Dimensioni: 2129 x 1174 px | 36,1 x 19,9 cm | 14,2 x 7,8 inches | 150dpi

Altre informazioni

Questa foto è un'immagine di pubblico dominio, il che significa che il copyright è scaduto o che il titolare del copyright ha rinunciato a tale diritto. Alamy addebita un costo per l'accesso alla copia ad alta risoluzione dell'immagine.

Questa immagine potrebbe avere delle imperfezioni perché è storica o di reportage.

. Injurious insects and the use of insecticides [microform] : a new descriptive manual on noxious insects, with methods for their repression . Fig. 104. -Pyramidal Grape-vineCaterpillar. SMALL FRUITS. 127 Fore wings dark brown with lighter shades of brown and with wavylines and dots of dull whitish color. Hind wings bright coppery orreddish. Remedies.—Prof. C. H. Feruald (Hatch Exp. Sta. Bull. No. 12)recommends hand-picking and jarring infested trees or vines. The catei-pillars feed on the apple, plum, raspberry, poplar, etc. THE GRAPE-BERRY MOTH. {JEudemis hotrana.) The depredations of this insect are not always readily distinguish-able from the Black Boi of the grape. The adult female is a small, veryactive bluish moth, that lays her eggs late in June or early in July.The young larvse are very small, white caterpillars, with cinnamon-brown heads. When full grown the caterpillars are dark brown or olive-green, tinged with red, and about one-fourth of an inch long. They feed. a. Moth. Fig. 105.—The Grape-Berry Moth.6. Larva, c. Healthy fruit, d. Injured fruit. (Riley) upon the substance of the grape, and when one berry has been de-voured, the worm fastens an adjoining berry to the ruined one bymeans of a silken thread, and proceeds to burrow into the sound berry.In this manner several berries are often ruined by a single caterpillar.The caterpillars pupate on the leaf in a cozy little cocoon formed bybinding together two crescent-shaped bits cut from the leaf, and boundtogether in the manner of leaf rolling insects. In about ten days themoths emerge. This species is believed to be two-brooded in theSouthern and single-brooded in the Northern States. Remedies.—Clean culture, gathering and destroying the fallenleaves, and burning infested fruit are the only remedies now known. 128 INJURIOUS INSECTS. THE GRAPE-ROOT BORER. {^geria polistiformis.) This insect rarely does serious injury to the grape. The adult Ls asmall moth, black in color, with bright yell

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1890
• booksubjectbenefic
• bookyear1894