NEMATICIDAL EFFECT OF GARLIC AGAINST MELOIDOGYNE INFECTING TOMATO

Document Type : Original Article

Authors

1 Department Agricultural, Zool and Nematology Faculty of Agricultural, Cairo University, Giza, Egypt

2 Plant Pathology Research Institute, Agricultural Research Center, Giza, Egypt

Abstract

Different concentration of smashed garlic, Allium sativum were tested to control M.incognita infecting tomato, under greenhouse condi­tions. A negative correlation was noticed between garlic dosages and each of nematode galling, number of J2 in soil and number of eggs / plant. The percentages of reduction of these three parameters ranged from 20% to 72%, from 23.2% to 90.7%, and from 23.6% to 74.2 % respectively. Shoot growth of the nematode-infected plants were pro­gressively increased due to the successive increase of garlic conentra­tion, except with the highest one. The percentage increase of shoot weight ranged from 5.9% to 23.5% as a result of garlic treatments. The optimum concentration of garlic was 15 g / pot in which it led to a con­siderable nematicidal action and the most improvement to plant growth of the nematized plants.