Evaluation of the nematicidal effects of smashed garlic, sincocin and nemaless on the root-knot nematode, Meloidogyne incognita infecting cowpea plants

The nematicidal effects of smashed garlic, sincocin-AG and nemaless on the root-knot nematode, Meloidogyne incognita infecting cowpea were studied under greenhouse conditions. It was noticed that most treatments significantly [P

Evaluation of the nematicidal effects of some organic amendments, biofertilizers and intercropped marigold, Tagetes erecta plant on the root-knot nematode, Meloidogyne incognita-infected cowpea plants

The influences of buffalo, poultry and pigeon droppings as organic amendments, nitrobien and phosphorine as biofertilizers and intercropped marigold, Tagetes erecta were evaluated against Meloidogyne incognita infecting cowpea plants. Results proved that all treatments significantly [P

Vertical and horizontal distributions of plant - parasitic nematodes associated with banana CV. Williams under flood irrigation regime

Under flood irrigation system, the vertical and horizontal distributions of plant-parasitic nematodes associated with soil and roots of banana cv. Williams were investigated. The sampling data generally indicated that the highest population density of parasitic nematodes viz. Criconemoides spp., Helicotylenchus exallus, Hoplolaimus spp. and Meloidogyne incognita were concentrated at soil depth layers of 0-15 cm, and 16-30 cm at the horizontal distance of just beneath the plant base [zero cm] and 40 cm from the banana pseudostem base which is correlated with the growth and distribution of the feeder roots of banana. These sites should be considered as the best sampling points for such coin habiting nematodes

Histopathological changes induced by either Root - Knot or spiral nematedes on banana roots

Cross and longitudinal sections in roots of banana cv. Williams infected by either Meloidogyne incognita or Helicotylenchus dihystera showed that the histological alterations induced in roots infected with M. incognita were displayed by the giant cell formation in both cortical and stelar regions. The giant cells were, always, in clusters each containing 3-6 cells. Roots infected with H. dihystera showed small brown lesions around the penetratedsites in the cortical layer causing considerable cell wall damage. The walls of the invaded cells by the nematodes were heavily stained with safranine indicating the presence of lignin, while healthy cell walls were lightly stained