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Tables
- Table 1.
A list of the pest problems under study by the Urban Biological Control project, University of California, Berkeley, California, 1977 and requests for pest management advice from cities participating in the program during 1976.
Pest Species Importance Total % Phryganidia callfornica, California oakmoth 575 46.0 Hyphantria cunea, Fall webworm 123 9.8 Pyrrhalta luteola, Elm leaf beetle 98 7.8 Drepanaphis acerifolii, Silver maple aphid 72 5.8 lllinoia liriodendri, Tulip tree aphid 65 5.2 Archips argyrospilus, Fruit tree leaf roller 57 4.6 Lithophane attenata, Green fruit worm Prociphilus fraxinfolíí, Modesto ash aphid 38 3.0 Euceraphis punctipennis and 23 1.8 Callipterinella calliptera, Birch aphids Schizura concinna, Red-hump caterpillar 23 1.8 Myzocallis sp., Tuberculoides sp. and 18 14 Tuberculaius sp. Oak aphids Orgyia vetusta, White faced tussock moth 17 1.4 Hyalopterus pruni, Plum aphid 14 1.1 Gossyparia spuria, European elm scale 12 1.0 Malacosoma sp., Tent caterpillar 11 .9 Periphyllus lyropictus, Norway maple aphid 10 .8 Eucallipterus tiliae, Linden aphid 10 .8 Tropidosteptes illitus, Ash bug 10 .8 Saissetia oleae, Black scale 8 .6 Leptocorris rubrolineatus, Western box elder bug 7 .6 Scolytus rugulosis, Shot hole borer 5 .4 Tinocallis platani, Elm aphid 5 .4 ?, Hackberry aphid 4 .3 Trialeurodes sp., Whiteflies 4 .3 Calico sp., Sweetgum scale 3 .2 Hordnia circellata, Blue-Green sharpshooter 3 .2 Muscellaneous aphids 21 1.7
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