Parasitoid disturbance populations in agroecosystems can be maintained through the provision of habitat refuges with host resources. However, specialized herbivores that feed on different host plants have been shown to form host-specialized races. Parasitoids may subsequently specialize on these herbivore host races and therefore prefer parasitizing insects from the refuge, avoiding foraging on the crop.

Land-use options that increase resilience and reduce vulnerability of contemporary societies are fundamental to livelihoods improvement and adaptation to climate change. Agroforestry as a wide-spread land-use adaptation may potentially support livelihoods improvement through simultaneous production of food, fodder and firewood as well as mitigation and adaptation to climate change. Drawing on the representative literature from peer-reviewed research, this paper critically examines the contribution of agroforestry systems in India to: biodiversity conservation; yield of

Only when farming is based upon "natural principles" can it be truly sustainable. Ecological farming is based on nurturing and nourishing the soils. Emphasizing soil conservation and building up organic matter are key to maintain these natural ecological balances in crop ecosystems. Mojo plantation is one such attempt.

The filamentous ascomycetous fungi Trichoderma spp. are agriculturally and industrially important, being the major source of many commercial enzymes and as biofungicides. More than 60% of all registered biofungicides used for plant disease control are Trichoderma-based. Mycoparasitism, wherein one fungus directly kills and obtain nutrients from other fungi is considered to be one of the most important mechanisms of biocontrol. 

 

Agronomic intensification has transformed many agricultural landscapes into expansive monocultures with little natural habitat. A pervasive concern is that such landscape simplification results in an increase in insect pest pressure, and thus an increased need for insecticides.

A survey of organic and conventional potato fields shows that species evenness is greater under organic management. Replicating these levels of evenness in a field trial shows that the evenness of natural enemies found in organic fields promotes pest control and increases crop biomass. This is independent of the identity of the dominant enemy species, so is a result of evenness itself.

Organic farming supports higher biodiversity. Research involving the Colorado potato beetle shows that this increased diversity can deliver a better ecosystem service in the form of more effective pest control.

Antagoistic bacteria were isolated from soil samples collected from different forest areas of Jabalpur, Mandla, Umaria and Bilaspur. One antagonistic bacteria Bacillus firmus was isolated from the soil of Belkund teak forest nursery, Kundam Project, Forest Development Corporation, Jabalpur.

This study sets out the importance of analysing a specific situation in order to develop a holistic strategy of interventions which will be appropriate to the vectors

Environmental conservation depends, to a large degree, on public acceptance. Understanding people

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