The Shipley Collection of Scientific Papers, Volumen328

abundant acidity Africa Agric agricultural albidiventris Andrews Antigua Aphids appears attacks of insect bacteria Barbados Bredd Bull bushes cacao Canney cause cingulatus Cochin China cotton fields cotton pest cotton plant Cotton Stainer cotton-growing crop damage Dist district drainage drought Dysdercus spp East Africa effect Egypt Empire Cotton Growing Entomology excessive rainfall Expt Fabr factor fasciatus favourable Froghopper fungus Grenada grown growth Helopeltis HOWARD humidity importance India infestation insect pests internal boll disease Island Italian Somaliland Jassid attack large numbers larvæ Malay Archipelago manures mimus moisture Montr Montserrat Nevis nigrofasciatus pest pest attack pests of cotton potash prevalence recorded reported Rept resistance root absorption ruficollis sap-feeding insect Schaef season serious pest soil aeration soil conditions South Southern Nigeria species stained cotton Stäl sub-soil Sudan superstitiosus suturellus temperature thrips trees Trinidad U.S. Dept Uganda unfavourable vigour Vincent water-logged weather West Indies