Potential and problems of developing bacterial biocontrol agents

Techniques in Mycorrhizal Studies

“…Lack of infrastructure for long-term research and development and critical mass of expertise in public and privately funded institutions! industry have been cited as reasons for lack of progress and/or commercially available biocontrol products in the marketplace (30,61,93,193). However, escalating costs associated with the discovery and registration of new chemical pesticides, persistence of chemical residues in soil, water, and food, off-target spray drift, voluntary or legislated withdrawal of chemical pesticides from the marketplace, and emergence of pesticide-resistance in plant pathogens are prompting the evaluation of alternatives to chemical pesticides for pest (disease) control (22,63,93,95).…”

Mycorrhizae As Biocontrol Agents

“…Lack of infrastructure for long-term research and development and critical mass of expertise in public and privately funded institutions! industry have been cited as reasons for lack of progress and/or commercially available biocontrol products in the marketplace (30, 61,93,193). However, escalating costs associated with the discovery and registration of new chemical pesticides, persistence of chemical residues in soil, water, and food, off-target spray drift, voluntary or legislated withdrawal of chemical pesticides from the marketplace, and emergence of pesticide-resistance in plant pathogens are prompting the evaluation of alternatives to chemical pesticides for pest (disease) control (22,63,93,95).…”

“…A case in point is the utility of mycorrhizal fungi for biological control of plant diseases. Various traits often cited as desirable in a biocontrol agent include that they have reliable and consistent perfonnance on the target pest, have no detrimental effects on non-target organisms, are easy to mass-produce and use, have an acceptable shelflife (approximately 1-2 years minimum), persist in the environment for an acceptable period oftime (not too short or too long), and they are highly effective under a broad range of environmental and geographical locations (30,39,63,93,193). The ubiquitous nature and non-culturable status or lack of effective fermentation technologies of many mycorrhizal fungi, particularly the arbuscular mycorrhizal fungi, is an aspect that has often curtailed pursuit ofthese symbionts as biocontrol products.…”

“…Recent history has shown the reduction or elimination ofbiocontrol programs in several companies and government laboratories (193), while awareness of the impact of chemical pesticides on the environment and human health has been increasing. Lack of infrastructure for long-term research and development and critical mass of expertise in public and privately funded institutions!…”

Potencialidade de um actinomiceto de rizosfera de tomateiro como agente de biocontrole de doenças

“…Assim sendo, a cultura do tomate é uma das que mais demanda o uso de agrotóxi-cos durante seu processo de cultivo, representando ônus ao produtor e riscos ao consumidor no que tange a resíduos nos produtos finais consumidos (Jones et al, 1991;Minami & Haag, 1989). Consideradas as implicações ecológicas e sanitárias decorrentes do uso contínuo e em grandes quantidades de pesticidas (Uykhede, 1996), a busca e a pesquisa por alternativas de manejo da doença são importantes.…”