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Flowers, Fruits, and Frass

Local and statewide information on a variety of current topics for home gardeners and market growers.
pin oak iron chlorosis

Iron Chlorosis

Many Illinois gardeners have been noticing yellowing leaves on their trees this spring states University of Illinois Extension Horticulture Educator, Kelly Allsup. This leaf condition is most likely caused by the frequent rains and consistently wet soils. Iron chlorosis is the yellowing of the leaves with the veins remaining green. It is most common to pin oak, red maple, white oak, river birch...

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Septoria Leaf Spot of Tomato2241
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Wet summer could be problematic for tomatoes

Gardeners are wondering if they are going to get a crop of red, ripe tomatoes because of rains across the state states University of Illinois Horticulture Educator, Kelly Allsup. If you suspect disease, here are few signs to look for and what you can do about it: Septoria leaf spot is the most common of all the tomato diseases. The disease symptoms begin mid to late summer and start off...

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smoke tree displaying symptoms of verticillium wilt
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Could your favorite tree have Verticillium Wilt? by Diane Plewa

So far this year we've had 5 confirmed cases of Verticillium wilt in woody ornamentals at the University of Illinois Plant Clinic. Four were Japanese maple trees, and the fifth was a redbud. Verticillium wilt is fairly common in Illinois. This fungal disease is usually lethal to the host, and it unfortunately boasts a huge host range. The fungus can survive in the soil for several years,...

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pines in flooded pond

Too much Rain by Dave Robson

Plants need water to grow, but too much water can be as bad as too little, and in some cases, maybe even more problematic. Several things occur when there's too much moisture for plants. The biggest negative is the lack of oxygen around the roots, which need as much air as leaves. While not big photosynthetic powerhouses like leaves, roots do breathe, and it's important to have oxyg...

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ILLINOIS DEPARTMENT OF AGRICULTURE TO OFFER FREE RECYCLING PROGRAM FOR AGRICHEMICAL CONTAINERS SPRINGFIELD, Ill. – The Illinois Department of Agriculture is encouraging farmers and agrichemical facilities to save their empty agrichemical containers. The department announced today it has arranged to recycle them. Beginning at the end of July and continuing in A...

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