AMMAR, A. (2007). CONVENTIONAL AND DEVELOPMENTAL SPRAYING TECHNIQUES FOR CONTROLLING WHITEFLY ATTACKING TOMATO PLANTS IN GREENHOUSES.. Egyptian Journal of Agricultural Research, 85(1), 67-75. doi: 10.21608/ejar.2007.211061
ABEL-MEGED E. AMMAR. "CONVENTIONAL AND DEVELOPMENTAL SPRAYING TECHNIQUES FOR CONTROLLING WHITEFLY ATTACKING TOMATO PLANTS IN GREENHOUSES.". Egyptian Journal of Agricultural Research, 85, 1, 2007, 67-75. doi: 10.21608/ejar.2007.211061
AMMAR, A. (2007). 'CONVENTIONAL AND DEVELOPMENTAL SPRAYING TECHNIQUES FOR CONTROLLING WHITEFLY ATTACKING TOMATO PLANTS IN GREENHOUSES.', Egyptian Journal of Agricultural Research, 85(1), pp. 67-75. doi: 10.21608/ejar.2007.211061
AMMAR, A. CONVENTIONAL AND DEVELOPMENTAL SPRAYING TECHNIQUES FOR CONTROLLING WHITEFLY ATTACKING TOMATO PLANTS IN GREENHOUSES.. Egyptian Journal of Agricultural Research, 2007; 85(1): 67-75. doi: 10.21608/ejar.2007.211061
CONVENTIONAL AND DEVELOPMENTAL SPRAYING TECHNIQUES FOR CONTROLLING WHITEFLY ATTACKING TOMATO PLANTS IN GREENHOUSES.
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
Abstract
Field experiments were undertaken in El - Ismaillia Govemorate, Egypt to evaluate the performance of two ground spraying techniques in greenhouse against whitefly Bemisia tabad (Genn) infesting tomato plants during 2004 & 2005 seasons. Tested spraying equipment were : semco sprayer with hand lance at 6 L/fad. and conventional sprayer at 300 1/fad. with the use of Prempet and jojoba (plant extract) insecticides. Data indicated that semco sprayer with hand lance at 6 L/fad. gave satisfactory coverage on tomato plants amounted 93.75 and 90.7% and minimum lost between plants accounted for 0.59 - 1.48% and very poor contamination on the applicator by 5.66 - 8.14 of spray deposit. But in case of conventional sprayer at 300 L/fad., percentage of spray deposit ranged presented by 42.7 and 34.2% on tomato plants, lost on land between tomato plants was 17.95 and 15.6%, and contamination of applicator reached 47.43 and 41.7%. Data showed that semco sprayer with hand lance at 6 L/fad. gave excellent control against whitefly by using recommended and 3/4 recommended of Prempet insecticide at 300 ljfad. which presented by 80.9 and 67.1%, respectively, followed by jojoba (plant extract) at 500 1/100 litre water with the same sprayer at recommended and 3/4 recommended rates give 68. land 50.3%, respectively. Meanwhile, conventional sprayer gave percent reduction ranged between 59.4 and 56.6 by using Prempet insecticide and 50.1 and 37.4 % with jojoba (plant extract) at recommended and 3/4 recommended respectively.
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