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Effect of Dinitroanilines on Solanaceous Vegetables and Soil Fungi

Published online by Cambridge University Press:  12 June 2017

Y. Eshel  and
J. Katan
Y. Eshel
Affiliation:
Dep. of Field and Veg. Crops and Dep. of Plant Pathol. and Microbiol., Hebrew Univ. of Jerusalem, Faculty of Agr., Rehovot, Israel
J. Katan
Affiliation:
Dep. of Field and Veg. Crops and Dep. of Plant Pathol. and Microbiol., Hebrew Univ. of Jerusalem, Faculty of Agr., Rehovot, Israel
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Abstract

The phytotoxicities of four substituted dinitroanilines, N-butyl-N-ethyl-α,α,α-trifluoro-2,6-dinitro-p-toluidine (benefin), 2,6-dinitro-N,N-dipropylcumidine (isopropalin), 4-(methylsulfonyl)-2,6-dinitro-N,N-dipropylaniline (nitralin), and α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine (trifluralin), to eggplant (Solarium melongena L. ‘Black Beauty’), pepper (Capsicum annuum L. ‘Vindale’), and tomato (Lycopersicon esculentum Mill. ‘VF 145-B-7879′) were studied. Nitralin and trifluralin were most active in inhibiting root elongation and top growth of these plants, the effect of benefin was intermediate, and isopropalin was the least active herbicide. The order of crop tolerance was as follows: tomato > pepper > eggplant. The effect of these herbicides on two pathogenic fungi, Rhizoctonia solani Kuehn and Fusarium oxysporum f. sp. lycopersici (Sacc.) Snyd. and Hans. was tested in culture and was found to be quantitatively and qualitatively different from that on plants. With both fungi benefin and trifluralin were more toxic than isopropalin, while nitralin showed a very low toxicity. R. solani was the less sensitive fungus.

Type
Research Article
Information
Weed Science , Volume 20 , Issue 3 , May 1972 , pp. 243 - 246
Copyright
Copyright © Weed Science Society of America 

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References

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