Cucurbits

Vegetable Crops Hotline A newsletter for commercial vegetable growers prepared by the Purdue University Cooperative Extension Service

Cucurbits

Green Stink Bug

August 5, 2015 - From Issue: 603

By: Rick Foster

I have seen more green stink bugs this year than at any time in my career. I have no logical explanation for their abundance. It was thought that as the [Read More…]

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Insect and Mite Management

Downy Mildew Update

August 4, 2015 - From Issue: 603

By: Dan Egel

On July 22, I announced that downy mildew had been observed on watermelon in Knox County in southwestern Indiana. This article https://ag.purdue.edu/arp/swpap/VeggieDiseasesBlog/Lists/Posts/Post.aspx?ID=48 describes the outbreak and management options. Below, I [Read More…]

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Cucurbits

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Plant Disease Management

Mid-Season Nitrogen Management in Pumpkins

August 4, 2015 - From Issue: 603

By: Dan Egel

Pumpkins are off to good start and vines are starting to run, which means it is time to think about making a sidedress application of nitrogen. Typically, I recommend to split [Read More…]

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Cucurbits
- Pumpkins

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Soil Fertility and Fertilizers

Sunburn on Vegetables

August 4, 2015 - From Issue: 603

By: Dan Egel and Liz Maynard

Vegetables such as this watermelon may become sunburned if lack of foliage cover exposes the fruit to excess sun and heat. (Photo by Dan Egel)

Loss of foliage due to poor growing conditions or disease can cause fruit to be exposed to the sun. Hot temperatures and direct sunlight can lead to areas of the [Read More…]

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Downy Mildew of Watermelon

July 22, 2015 - From Issue: 602

By: Dan Egel

Downy mildew of watermelon causes dark brown or black lesions often surrounded by a yellow halo.

This disease has been observed on watermelon in Knox County. The following article will discuss the symptoms, biology and management of downy mildew of cucurbits. Symptoms. The symptoms of downy [Read More…]

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Cucurbits
- Watermelon

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Plant Disease Management

Magnesium and Manganese in Melon

July 22, 2015 - From Issue: 602

By: Dan Egel and Liz Maynard

Magnesium deficiency in cantaloupe often occurs in high

I have observed many fields of cantaloupes with magnesium deficiency or manganese toxicity. Watermelon plants may exhibit similar symptoms, but not as frequently as cantaloupe. Both disorders are related to [Read More…]

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Cucurbits

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Striped Cucumber Beetle

July 9, 2015 - From Issue: 601

By: Rick Foster

Populations of striped cucumber beetles continue to remain high. Muskmelon and cucumber growers should continue to monitor and spray as needed to avoid transmission of the pathogen that causes bacterial [Read More…]

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Cucurbits

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Insect and Mite Management

Replanting Poor Stands of Pumpkins

July 9, 2015 - From Issue: 601

By: Liz Maynard

Growers may be wondering whether to replant pumpkin fields where the stand is uneven due to excess moisture. Potential yield of the replants is one thing it would be good [Read More…]

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Cucurbits
- Pumpkins

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Crop Culture

Phytophthora Fruit Rot of Watermelon

June 25, 2015 - From Issue: 600

By: Dan Egel

Most growers first notice this disease when large, soft areas develop on mature watermelon fruit. These lesions can be several inches across and are often covered with a white mold. The [Read More…]

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Cucurbits
- Watermelon

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Plant Disease Management

Southwest Purdue Agricultural Center Field Day

June 12, 2015 - From Issue: 599

By: Dan Egel

A field day will be held on July 9 to share with the public the various research activities at the Southwest Purdue Agricultural Center in Vincennes, IN. The day will [Read More…]

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Cucurbits

Green Stink Bug

Downy Mildew Update

Mid-Season Nitrogen Management in Pumpkins

Sunburn on Vegetables

Downy Mildew of Watermelon

Magnesium and Manganese in Melon

Striped Cucumber Beetle

Replanting Poor Stands of Pumpkins

Phytophthora Fruit Rot of Watermelon

Southwest Purdue Agricultural Center Field Day

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