The Shipley Collection of Scientific Papers, Том 1641833 |
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Страница 65
... throughout the entire year . Especially troublesome in the early spring during the months of April and May . Not so serious a pest on roses as is the small green louse ( Myzus rosarum ) . Distribution . Throughout the entire State ...
... throughout the entire year . Especially troublesome in the early spring during the months of April and May . Not so serious a pest on roses as is the small green louse ( Myzus rosarum ) . Distribution . Throughout the entire State ...
Страница 80
Distribution . -Throughout the entire State . Food Plants . - Roses , usually more serious on climbing varieties . At- tacks the leaves and buds and may prevent the production of flowers . Natural Enemies . - Syrphid flies do ...
Distribution . -Throughout the entire State . Food Plants . - Roses , usually more serious on climbing varieties . At- tacks the leaves and buds and may prevent the production of flowers . Natural Enemies . - Syrphid flies do ...
Страница 184
Distribution . Throughout the entire State , but more abundant in the Sierra foothills and in the Sacramento and San Joaquin valleys . Food Plants . This species attacks a great variety of both wild and cultivated trees and shrubs ...
Distribution . Throughout the entire State , but more abundant in the Sierra foothills and in the Sacramento and San Joaquin valleys . Food Plants . This species attacks a great variety of both wild and cultivated trees and shrubs ...
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