Tag Archive: Wilt

Planting Date is Critical for Fusarium Wilt Management in Watermelons

Fusarium wilt in watermelon on a commercial field in Madison County.  Credit Nick Dufault Fusarium wilt is caused by the soil borne fungus Fusarium oxysporum, which continues to be a problem for many Florida watermelon producers. Management of this devastating disease requires an integrated approach that combines conventional and novel techniques. Site selection is a …

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Permanent link to this article: http://jackson.ifas.ufl.edu/newsletters/2017/11/17/planting-date-is-critical-for-fusarium-wilt-management-in-watermelons/

Laurel Wilt Fungus (Raffaelea lauricola) Reflects the Spread of Redbay Ambrosia Beetles

This tiny thread of sawdust is an indication of an ambrosia beetle infestation. Photo by Les Harrison Ambrosia beetles are known for attacking various woody plants, causing some limb and stem dieback and sometimes plant death. There are at least 30 species of ambrosia beetles in Florida, several of which are non-native. Typically ambrosia beetles …

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Permanent link to this article: http://jackson.ifas.ufl.edu/newsletters/2017/07/15/laurel-wilt-fungus-raffaelea-lauricola-reflects-the-spread-of-redbay-ambrosia-beetles/

Managing Bacterial Wilt in Tomatoes with Grafting and a Plant Defense Inducer

Fig. 1: A tomato field in Florida with severe incidence of bacterial wilt. Photo credit: Mathews Paret Sanju Kunwar, Mathews Paret, Jeff Jones, Laura Ritchie, Steve Olson, and Josh Freeman, UF/IFAS NFREC Field tomato production in the southeastern United States is highly affected by bacterial wilt disease caused by Ralstonia solanacearum. In Florida, race 1 …

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Permanent link to this article: http://jackson.ifas.ufl.edu/newsletters/2015/09/11/managing-bacterial-wilt-in-tomatoes-with-grafting-and-a-plant-defense-inducer/

Watermelon Fusarium Wilt Update

Figure 1. Fusarium wilt of watermelon on a commercial field in Madison County on 06/15/15. Authors: Tatiana Sanchez, Mathews Paret, Joshua Freeman, and Nicholas Dufault Fusarium wilt of watermelon (Figure 1) is a soil-borne, fungal disease that can affect watermelon plants anytime from seed to harvest. It has been a problem for many Florida producers …

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Permanent link to this article: http://jackson.ifas.ufl.edu/newsletters/2015/08/21/watermelon-fusarium-wilt-update/

Fusarium Wilt in Watermelon

Fig. 1: Early wilting symptoms starting on one side of the plant from the disease Fusarium wilt of watermelon. Dr. Nicholas Dufault, UF/IFAS Plant Pathologist Recently, there have been some observational data that suggest North Florida watermelon growers are experiencing an increased incidence of Fusarium wilt in their production fields. While it is uncertain what …

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Permanent link to this article: http://jackson.ifas.ufl.edu/newsletters/2014/09/19/fusarium-wilt-in-watermelon/

Tomato Spotted Wilt Virus

Tomato spotted wilt on leavesPhoto Credits: IFAS Tomato Spotted Wilt on FruitPhoto Credit: IFAS The spotted wilt virus has a wide host range and can affect tomatoes, peppers, plus many other vegetables and ornamental plants. Early symptoms of spotted wilt on tomato are difficult to diagnose. Young, infected plants may show an inward cupping of …

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Permanent link to this article: http://jackson.ifas.ufl.edu/newsletters/2014/07/01/tomato-spotted-wilt-virus/

Spotted Wilt Virus in Tomato

Tomato exhibiting signs of tomato spotted wilt virus Tomatoes, though a  joy to eat, are not the easiest crop to grow.  An Escambia County grower recently brought in a sample showing unusual patterns on the green fruit.  When he cut the fruit open, he noticed discoloration on the inside.  The issue was visually diagnosed as tomato spotted wilt virus. …

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Permanent link to this article: http://jackson.ifas.ufl.edu/newsletters/2013/06/19/spotted-wilt-virus-in-tomato/