Nanoparticles made from plant viruses could be farmers' new ally in pest control

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Nanoparticles made from plant viruses could be farmers' new ally in pest control
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Engineers have devised a new solution to control a major agricultural menace, root-damaging nematodes. Using plant viruses, the researchers created nanoparticles that can deliver pesticide molecules to previously inaccessible depths in the soil. This 'precision farming' approach could potentially minimize environmental toxicity and cut costs for farmers.

A new form of agricultural pest control could one day take root -- one that treats crop infestations deep under the ground in a targeted manner with less pesticide.

To find a more sustainable and effective solution, a team led by Nicole Steinmetz, a professor of nanoengineering at the UC San Diego Jacobs School of Engineering and founding director of the Center for Nano-ImmunoEngineering, developed plant virus nanoparticles that can transport pesticide molecules deep into the soil, precisely where they are needed.

"If we had used a traditional synthetic method where we link the pesticide molecules to the nanoparticles, we would have essentially created a new compound, which will need to go through a whole new registration and regulatory approval process," said study first author Adam Caparco, a postdoctoral researcher in Steinmetz's lab.

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