Crop Protection

affected trees areas bait biological control bud union budwood burrowing burrowing nematode cachexia Calif California caused cent citrange citri citron citrus nematode citrus trees Citrus Virol concave gum Conf crinkly leaf damage decline develop dieback disease of citrus effective established exocortis Fawcett Florida fruit fly fungi fungus Gainesville galls graft grapefruit greening groves growth gummosis host important indexing indicator plants infected injury inoculated Klotz leaves mandarin mealybug Meyer lemon natural enemies nursery stock orange rootstock orange trees Organ parasites pathogen pest Phytopathology pocket gopher Proc propagated psorosis red scale registration reported Reptr Roistacher rootstock Rough lemon satsuma scale insects scion seed seedling yellows seedling-yellows soil sour orange South Africa species spot spray spread stem pitting stubborn disease studies stunt sweet orange symptoms tangelo tatter-leaf temperatures tion tissue transmission trifoliate orange tristeza virus twigs Univ Valencia varieties vector vein virus diseases viruses Wallace xyloporosis