root-knot nematodes ( meloidogyne spp.) are important group of plant pathogens that have extensive hosting range and are caused for significant damage to agricultural products annually. various management strategies of control on nematodes has been used, but the application of plant products is one of the promising methods for nematode control. in this study, inhibitory effect of essential oils...

This review briefly examines some of the earlier research that lists the natural soil enemies of plant-parasitic nematodes. The major emphasis is on research developments of the past decade that consider biological control of nematodes. The importance ofbiocontrol has arisen as a consequence of the loss of the two effective but hazardous nematicidal soil fumigants, namely dibromo-chloropropane ...

Several species of plant parasitic nematodes have been encountered in soils of different tea-growing areas of the world. Roots and soil were sampled for the presence of plant-parasitic nematodes from tea plantations in Kusuku, the only major tea growing location in Nigeria. Six genera of plant-parasitic nematodes were recovered from the rhizosphere soil. Meloidogyne spp. Pratylenchus coffeae an...

were seven replications of each of tile five treatments. T h e exper imenta l design was randomized complete blocks. In a second similar experiment , aphids, Aphis gossypii Glover, were placed on the leaves of each plant just after t ransplant ing and before the aldicarb was appl ied (4). After the aphids became established on the plant, s and were uniformly distributed, technical aldicarb was ...

Tritrophic interactions involving plants, herbivores and parasites have been only recently documented for belowground systems, where entomopathogenic nematodes can exploit root herbivore induced volatile compounds to locate their hosts. Little is known, however, about whether the specificity of such interactions rivals that of the remarkable interactions found in aboveground studies. Using a be...

Highly adapted herbivores can phenocopy two-component systems by stabilizing, sequestering and reactivating plant toxins. However, whether these traits protect herbivores against their enemies is poorly understood. We demonstrate that the western corn rootworm Diabrotica virgifera virgifera, the most damaging maize pest on the planet, specifically accumulates the root-derived benzoxazinoid gluc...

Communities of plant-parasitic nematodes collected from five different vegetation types (canopy woodland, savannah, gallery forest, cultivated perennial, and annual plants) and soils (yellowish red latosols, dark red latosols, arenosols, acrisols, and gleysols) were studied. Ninety percent of the soil samples collected from savannah contained at least four genera of plant-parasitic nematodes. T...

Like any other branch of Agricultural Sciences, the Division of Nematology at IARI, initiated researches in the exciting field of biochemistry and molecular biology of plant parasitic nematodes during the early seventies of last century. The main research areas were biochemical mechanism of resistance against phytonematodes and diagnostics of economically important plant parasitic nematodes. Sp...

Root-knot nematodes represent one of the most important plant pathogens in Pomegranate cultivation regions. By studying structure plant-parasitic community inhabiting rhizosphere fields, it was found that