The Shipley Collection of Scientific Papers, Том 1641833 |
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Страница 104
FIG . 84. Adult females and egg masses of the citrus mealy bug ( Pseudococcus citri ) on orange . ( Essig , P. C. Jr. Ent . ) FIG . 96. The palm. 104 THE MONTHLY BULLETIN .
FIG . 84. Adult females and egg masses of the citrus mealy bug ( Pseudococcus citri ) on orange . ( Essig , P. C. Jr. Ent . ) FIG . 96. The palm. 104 THE MONTHLY BULLETIN .
Страница 214
... P. C. Jr. Ent . ) Life History . The eggs are lemon yellow and deposited early in the summer among the egg masses of the mealy bugs . The young prey upon the eggs , young and adults of the host and work great havoc . They are most ...
... P. C. Jr. Ent . ) Life History . The eggs are lemon yellow and deposited early in the summer among the egg masses of the mealy bugs . The young prey upon the eggs , young and adults of the host and work great havoc . They are most ...
Страница 218
... P. C. Jr. Ent . ) Distribution . Throughout the entire State , but more abundant in the south . Hosts . This species preys upon mealy bugs , the young of the armored scales , plant lice ( Aphis gossypii ) and other soft - bodied insects ...
... P. C. Jr. Ent . ) Distribution . Throughout the entire State , but more abundant in the south . Hosts . This species preys upon mealy bugs , the young of the armored scales , plant lice ( Aphis gossypii ) and other soft - bodied insects ...
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