Literature
  • Packard 1869
  • Guide to the study of insects and a treatise on those injurious and beneficial to crops: for the use of colleges, farm-schools, and agriculturalists. Second edition. (Not seen.) Salem Naturalist's Book Agency, Trubner, London, UK. 702 pp.
  • Paik 1972
  • Scale insects found in the greenhouses in Korea. Korean Journal of Plant Protection 11: 1-4.
  • Palaniswami 1991
  • Yam scale insects Aspidiella hartii Ckll. and its parasitoids. Journal of Root Crops 17: 75-76.
  • , Mound 1990
  • 2.2.5 Thysanoptera. In: D. Rosen (ed.), Armoured scale insects, their biology, natural enemies and control. Vol. 4B. World Crop Pests. Elsevier, Amsterdam, the Netherlands: 67-76.
  • Paloukis 1979
  • The most important scale insects of fruit trees in northern Greece. Plant Protection Institute, Thessaloniki, Greece. 148 pp.
  • Pan 1989a
  • A preliminary report on control of Hemiberlesia pitysophila using Cladosporium cladosporioides. (In Chinese.) Forest Pest and Disease 3: 22-23.
  • Pan 1989
  • Studies on bionomics of Hemiberlesia pitysophila and its control. (In Chinese.) Forest Pest and Disease 1: 1-6.
  • Pan 1987
  • Studies of a new destructive forest pest in South China: pine needle Hemiberlesian scale (Coccoidea: Diaspididae). (In Chinese; summary in English). Contributions from Shanghai Institute of Entomology 7: 177-189.
  • Paoli 1915
  • separate, 1916. Contributo alla conoscenze della cocciniglie della Sardegna. Redia 11: 239-268.
  • Parent 1970
  • Chemical control of the oystershell scale, Lepidosaphes ulmi (L.), in apple orchards in southwestern Quebec. Annals of the Entomological Society of Quebec 15: 71-79.
  • Parent 1973
  • Note on Aphytis proclia and Anabrolepis mayri (Hymenoptera: Chalcidoidea), parasites of the oystershell scale, Lepidosaphes ulmi (Homoptera: Coccidae). The Canadian Entomologist 105: 175.
  • , 1990
  • Host range, life cycle and natural enemies of mulberry scale (Pseudaulacaspis pentagona) on Prunus mume in southern Korea. Korean Journal of Applied Entomology 29: 104-112.
  • Parry-Jones 1936
  • Bionomics and ecology of red scale in Southern Rhodesia. Publication Mazoe Citrus Experimenal Station 5: 11-52.
  • Parsana 1994
  • Effect of drip irrigation on incidence of insect pests of sugarcane. Gujarat Agricultural University Research Journal 20: 15-17.
  • Pazini, Gravena 1994
  • Population dynamics of Parlatoria cinerea Hadden (Hemiptera: Diaspididae) and its parasitism on Citrus sinensis (Osbeck) in the region of Bebedouro, SP. (In Portuguese.) Anais da Sociedade Entomologica do Brasil 23: 409-417.
  • 1994
  • Update on status of pests of tropical fruit crops in South Florida. Proceedings of the Florida State Horticultural Society (
  • , Mohyuddin 1997
  • 10. Insect pests. In: R.E. Litz (ed.), The mango: botany, production and uses. CAB International, Wallingford, UK: 337-362 .
  • 1997
  • The current mango pests management in the tropics and subtropics. Acta Horticulturae 455: 812-820.
  • Perruso, Cassino 1997
  • Plano de amostragem presenca-ausência para Selenaspidus articulatus (Morg.) (Homoptera: Diaspididae) na cultura da laranja. Anais da Sociedade Entomológica do Brasil 26: 321-326.
  • Perruso, Cassino 1993
  • Population fluctuations of Selenaspidus articulatus Morg. (Hemiptera: Diaspididae) on Citrus sinensis L. in Rio de Janeiro state. Anais da Sociedade Entomologica do Brasil 22: 401-404.
  • Picart, Matile-Ferrero 2000
  • Mealy bugs in collection greenhouses. A number of species can be found in Paris, including three new nationwide species. (In French.) Phytoma 524: 44-46.
  • Pickel 2000
  • Pests of peach. University of California Pest Management Guidelines http://www.ipm.ucdavis.edu/PMG/selectnewpest.peach.html
  • Pickel 2000a
  • (1998). Pests of prune. University of California Pest Management Guidelines http://www.ipm.ucdavis.edu/PMG/selectnewpest.prune.html
  • , Rajamma 1987
  • New records on the incidence of spotted beetle, Oidis affinis Jacoby (Coleoptera: Chrysomelidae) on elephant foot yam and the scale insect, Aspidiella hartii Cockerell (Homoptera: Diaspididae) on taro. Entomon 12: 113-114.
  • Pinhassi 1996
  • Oviposition and emergence of olive scale (Homoptera: Diaspididae) crawlers: regional degree-day forecasting model. Environmental Entomology 25: 1-6.
  • 1984
  • Insect pests of the Sahara. In: J.L. Cloudsley-Thompson (ed.), Key environments. Sahara desert. Pergamon Press, Oxford, UK: 145-174.
  • Popova 1979
  • Parasites of the males of the California scale Diaspidiotus perniciosus Comst. (Homoptera, Coccoidea). Entomologicheskoe Obozrenie 58: 538-547.
  • Porcelli 1990
  • New Italian scales. Frustula Entomologica 13: 31-38.
  • Porcelli, Frisullo 1998
  • The fungus Nectria aurantiicola Berk. et Br. (Fusarium larvarum Fuckel) a biocontrol agent of the armoured scale Suturaspis archangelskyae (Lindinger) in Apulia (southern Italy). Entomologica 32: 109-119.
  • Prinsloo 1985
  • Afrotropical Encyrtidae (Hymenoptera: Chalcidoidea): new records and notes. Journal of Natural History 19: 277-284.
  • Prinsloo 1979
  • On the species of Zaomma Ashmead (Hymenoptera: Encyrtidae) from the Ethiopian region. Journal of the Entomological Society of Southern Africa 42(1): 65-75.
  • Prinsloo, Neser 1994
  • The Aphytis fauna of the Afrotropical region. In: D. Rosen (ed.), Advances in the study of Aphytis (Hymenoptera: Aphelinidae). Intercept Limited, Andover, UK: 280-302.