Mary Hausbeck

I am a Professor and Extension Specialist in the Plant Pathology Dept., East Lansing, working with diseases of vegetables, greenhouse ornamentals and ginseng.

[Mary Hausbeck @MHausbeck]

Onion downy mildew confirmed in MI yesterday. Moderate temps coming later this week will favor this pathogen.

[Mary Hausbeck @MHausbeck]

Downy mildew confirmed in Gratiot Co. yesterday. Fungicide sprays are needed.

[Mary Hausbeck @MHausbeck]

High downy mildew count in Bay Co where lots of cukes grow. Growers need to begin their DM program. Watching a suspect sample from Monroe.

[Mary Hausbeck @MHausbeck]

More than 4" of rain and 60 mph winds in SW MI last nigh. Tough storm for famers, plants, and birds!

[Mary Hausbeck @MHausbeck]

Good news for Ginseng growers. Fontelis is now registered for use in WI and MI.

[Mary Hausbeck @MHausbeck]

Congrats L.Granke and L. Quesada on your pub in European Journal of Plant Pathology on virulence of P. capsici from a worldwide collection

[Mary Hausbeck @MHausbeck]

MI weather with over 48 hrs of leaf wetness will mean big disease problems. Choose fungicides wisely and be aggressive!

[Mary Hausbeck @MHausbeck]

No rest for plant pathogens this weekend. High temps and wet foliage means spots, blights, and rots are coming. Aggressive programs needed.

[Mary Hausbeck @MHausbeck]

Hot temps will exacerbate pink root on onions. Affected fields may need extra attention and protection of stressed foliage from blights.

[Mary Hausbeck @MHausbeck]

Ginseng field day is August 4. Be there!

[Mary Hausbeck @MHausbeck]

Tiffany defended her Master's project with Phytophthora tropicalis and capsici and blended veggies and ornamentals. New hosts for P. cap.

[Mary Hausbeck @MHausbeck]

Cannonball has a non-food use for ginseng against Cylindrocarpon. Yippee!

[Mary Hausbeck @MHausbeck]

WMV2 diagnosed on winter squash. Common for MI growers, but concerning. Hopefully, yield won't be impacted but too early to say.

[Mary Hausbeck @MHausbeck]

Some Phytophthora soil diseases like it hot. Its cooler in the soil anyway. Irrigate sparingly and if you've gotten rain, be preventive.

[Mary Hausbeck @MHausbeck]

Downy mildew in 3 MI counties on cukes. Home gardens must also have it. Check those cuke (and melon) leaves and report to extension.

[Mary Hausbeck @MHausbeck]

Hot temps make disease control tricky. Don't apply during hottest time and don't mix surfactants or foliar fertilizers with fungicides.

[Mary Hausbeck @MHausbeck]

Onion downy mildew confirmed today. New products are worth a try but keep Mancozeb in the program, too.

[Mary Hausbeck @MHausbeck]

Remember...no Phostrol when temps are high. Leaf burn in our trials when sprays are made during heat waves. Aliette seems safer.

[Mary Hausbeck @MHausbeck]

Downy mildew marches through eastern production areas of Michigan. Too bad for cucumber and melon growers. Webpage has pics and more.

[Mary Hausbeck @MHausbeck]

Ginseng looks great in WI. Be vigilant against Phytophthora. Stay the course with Presidio, Captan, Reason. Alternaria still active.