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Saad L. Hafez


University of Idaho

HQ Phone:  (208) 885-4000

Direct Phone: (208) ***-**** ext. ***direct phone


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University of Idaho

875 Perimeter Drive

Moscow, Idaho, 83844

United States

Company Description

About The University of Idaho: The University of Idaho is Idahos oldest public university and is one of only 72 land-grant research universities in the United States. From its residential campus in Moscow, UI serves the state of Idaho through educational cente...more

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Background Information

Employment History

Idaho State Nematologist

University of Idaho Research and Experiment Center

Web References(50 Total References)


SON recognize Hafez, Baum and Thomas as Fellows
The Society of Nematologists (SON) recognized Saad Hafez, Thomas Baum and W. Kelly Thomas as Fellows of the SON for their contributions to the study of nematodes during its 2015 annual meeting. Saad Hafez is a professor of nematolotgy at the University of IdahoParma Research and Extension Center and helped establish the University's nematode diagnostics lab. He is a former president of the SON.


"The more heat units you have, you have more generations of insects and diseases," said Saad Hafez, professor of nematology at the University of Idaho's Parma research station.


When it comes to nematodes, you have to emphasize management, said Saad Hafez, a nematologist at the University of Idaho's Parma Research and Extension Center, during the Washington-Oregon potato conference in Kennewick, Washington.
"It's not something you can eradicate or eliminate," he said. "Fumigation works very well controlling nematodes." Hafez said that current fumigants in use to control nematodes and potato diseases include Telone II, Telone C-17 and C-35 1,3D, Vapam (metam sodium), Metam Potassium and Metam Ammonia. "Metam sodium is not really a true fumigant but reacts like a fumigant. It's a contact biocide," said Hafez. "I want to emphasize that we've been working on a lot of new chemistry," said Hafez. "In the last 10 years a lot of chemical companies have shown interest in developing new nematicides. For years the list of nematicides was a short one that included Vydate, Mocap, Nimitz and Admire but Hafez said that there have been promising results with new products. With all the non-fumigant products he said that both the application method and the timing of application is very critical for the treatments to be successful. Hafez said that Nimitz, a nematicide produced by Adama, is a good nematicide but it doesn't move well in the soil and is best used in combinations with other products, not as a standalone treatment. Recently introduced products have been discovered to have efficacy against nematodes. Hafez said that Bayer CropScience's insecticide Movento has been effective against nematodes. He said that Movento works systemically. The first application should be at the plant's roseate stage and followed 14 days later by a second application. "You have to apply it when you have enough foliage for penetration and you have to apply it with a surfactant," Hafez said. "Movento is a very active nematicide, not a standalone treatment," he said. "You have to do it in combination with Vapam, Vydate or Mocap." Hafez recommended using Absorb, a soil penetrant, to aid in water movement with nematicides. "We found out that when we mix Absorb with Vapam, we get better results controlling nematodes," he said. Hafez said that planting non-host plants or green manures are both effective preventative strategies to reduce nematodes. He said that a study on corn, beans and wheat showed that corn is a bad rotation crop because the nematode can survive in the corn roots. Green manure crops Hafez has been testing include mustard, radish, beets, lentils, cabbage and onion. "Basically, if you're planting brassica, radish or mustard, you're adding natural vapam to the soil," Hafez said. Hafez said that the best solution to stop the spread of nematodes is to clean your equipment before moving from a field, to not use wastewater and to use certified seed. "You can spread nematodes, especially root-knot, very easy with infected seed," he said. "If you can leave the field fallow for one summer you can get 90 percent control of root-knot," Hafez said.


Dr. Saad L. Hafez, Professor, Director of Nematology Laboratory, University of Idaho -- Parma, ID
Dr. Hafez will lead a discussion about the evaluation, identification, control and prevention of nematodes in corn and alfalfa.


Dr. Saad Hafez, Extension Professor, Nematology, University of Idaho (A past graduate of UC Davis & internationally known expert on nematodes)

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