Citrus Leaves, Volume 33

acid acre agricultural Anaheim Angeles applied areas average avocado avocado trees black scale boxes buds Cali Calif chemical citrange Citrus Experiment Station citrus growers citrus industry Citrus Leaves citrus trees cost crop cultures damage deficiency Department dieldrin disease effect farm advisor farmers fertilizer Flavorseal Florida fornia frost protection Frostmaster Fuerte fumigation grapefruit groves grown growth Habra heaters important increase insects irrigation juice leaf lemon manager mealybug ment mite miticide Mutual Orange Distributors navel oranges nematode nitrogen oil spray operation Orange County orchard ORTHO packing parasites Parathion percent Phone plant potassium problem production psorosis Redlands replants Riverside rootstock salt San Diego County Santa Paula scions season seedlings soil sugar symptoms tablespoons teaspoon temperature tests tion treatment trunk Tulare Tulare County University of California Valencia orange varieties Ventura County virus wettable wind machine yield zinc