The Shipley Collection of Scientific Papers, Том 1641833 |
Из књиге
Резултати 1-3 од 80
Страница
... surface , equally distant from one another , and of equal size throughout the region . Sim- FIG . 3. Surface View of the cuticular Pores overly- ing the Glands of Batelli . ilar pores were found on the eighth abdominal pleura . The most ...
... surface , equally distant from one another , and of equal size throughout the region . Sim- FIG . 3. Surface View of the cuticular Pores overly- ing the Glands of Batelli . ilar pores were found on the eighth abdominal pleura . The most ...
Страница 17
... surface of the larva is still green and the ventral surface a pale green . When the larva has undergone the second ecdysis the dorsal surface assumes the normal bluish - grey or glaucous appearance , the underside of the body being a ...
... surface of the larva is still green and the ventral surface a pale green . When the larva has undergone the second ecdysis the dorsal surface assumes the normal bluish - grey or glaucous appearance , the underside of the body being a ...
Страница 96
... surface of the water , but will cling together in spots and the coating will be unnecessarily thick . The rapidity of spread of the film is also im- portant . As to quantity , under still conditions , an ounce of kerosene to 15 square ...
... surface of the water , but will cling together in spots and the coating will be unnecessarily thick . The rapidity of spread of the film is also im- portant . As to quantity , under still conditions , an ounce of kerosene to 15 square ...
Чести термини и фразе
abdomen abdominal segment adult antennæ ants aphid Aphis Appearance apple arsenic attacked body breeding brood buds California caterpillars cells cent citrus cocoons colonies color Commissioner cornicles cyanide damage deposited destructive Distribution dorsal early eggs Entomologist erichsonii Essig Family feed femora flies foliage Food Plants fruit fumigation gallons genus green hatch head hibernate History horticultural host inch long infested instabilis ladybird beetle larch Larch Sawfly large numbers larva larvæ lateral leaves legs Linn louse maggots male mealy bug mermithergates mites mosquitoes moth muscles Natural Enemies nest numbers observations Orasema orchards ovipositor P. C. Jr parasites Paris green pest Pheidole plant lice Plate Polyederkrankheit pound pseudogynes pupa pupæ pupal pupate quarantine Raupen sawfly scale insects southern species specimens spiracles spray spring stage summer surface thorax thrips Throughout the entire trees usually ventral winged female winter workers yellow young