Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Evaluation of some locally available plant leaves for the control of Meloidogyne incognita and Rhizoctonia solani disease complex.

Abstract

Evaluation of chopped leaves of ten locally available plants viz., Argemone mexicana, Cannabis sativa, Cassia angustifolia, Coccinia cordifolia, Coleus forskohlii, Duranta erecta, Parthenium hysterophorus, Phyllanthus niruri, Tinospora cordifolia and Withania somnifera was carried out for the management of disease complex involving Meloidogyne incognita and Rhizoctonia solani on Pseuderanthemum atropurpureum. The highest improvement in plant growth and physiological parameters was recorded in the plants grown in soil amended with the leaves of P. niruri followed by T. cordifolia, A. mexicana and P. hysterophorus. The results presented further showed that there was a significant reduction in number of galls, egg masses and nematode reproduction factor in plants amended with the chopped leaves of these plants. In addition, the organic amendments not only reduced the nematode population and root-rot but also delayed the number of days required for the expression of collar and crown rot symptoms. The decrease in nematode reproduction factor and root-rot percentage by the application of organic additives in the present study might be due to the nematicidal and fungicidal properties of the tested organic materials. However, the amendment of chopped leaves of C. sativa, C. forskohlii, C. cordifolia, C. angustifolia, D. erecta and W. somnifera were not able to reduce the plant damage caused by concomitant infection of M. incognita Race-3 and R. solani in P. atropurpureum.