Several tools used to control cotton leafworm, Spodoptera littoralis, boisd. and american bollworm, Helicoverpa armigera, hub. in peanut fields

The present paper discusses the integrated control of cotton leafworm, Spodoptera littoralis and Americam bollworm Helicoverpa armigera using four sprayer types i e. (Power knapsack sprayer EFCO-16 (60 and 80) L. /fed. Manual sprayer (UNX-1.8 10OL/fed.) and conventional motor sprayer 300L/fed. Moreover the insecticides (Dipel DF Radical, Dursban and Consult and Dursban only) in peanut fields were tried in new Saihea region Sharkia Governorate. Data indicated that Radical compound gave the highest initial reduction percentagAe and gave the best tool of integrated control of S. littoralis and H. armigera followed by Dursban and Consult and Dursban only on peanut fields. While the lowest initial reduction percentage of S. littoralis and H armigera recorded with Dipel DF in 2010 and 2011. On the other hand the highest mean residual reduction percentage (as a latent effect) was recorded with Radical compound in both seasons 2010 and 2011 treated by Dursban and Consult and Dursban only for S. littoralis and H. armigera. Meanwhile the lowest mean residual reduction percentage was recorded for Dipel DF. While the lowest influence of compounds on predators was recorded with Dipel DF followed by Radical (bioinsecticid)compared with Dursban and Consult and Dursban only (conventional insecticides) in 2010 - 2011 seasons. The obtained results revealed that the highest percentages of covering peanut plants were 62 - 61 % obtained using power knapsack motor sprayer (EFCO - 16) 60 L./ fed. followed by 59 _ 60 57 - 59 and 45 - 42 % for EFCO - 16 (80 L/fed.) UNX-18 and conventional motor sprayer with all used compounds, respectively. On the other hand, the lowest losses on land were recorded with EFCO - 16 (60 L. / fed.) 15 - 17 % followed by 16 _ 18 21 - 22 and 27- 28% using EFCO - 16 (80 L./fed.) UNX - 18 and conventional motor sprayer, respectively. Also the obtained results revealed that the lowest contamination for applicator was recorded using the manual sprayer (NUX - 18) 20 - 21 % contamination on the appreciator followed by 22- 23 22 - 25 and 27-31% with using EFCO-16 (60 and 80 L./fed.) and conventional motor sprayer, respectively.