Muskmelon Diseases

21Muskmelon diseases are caused by fungus living in the soil so gardeners that experience disease must treat or remove the soil before planting melons again. The spots crack and produce a crusty tan to white lesion.

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31Genetic resistance to the most important insect pests cucumber beetles and most of the major diseases including anthracnose gummy stem blight Alternaria leaf blight and bacterial wilt is absent in commercial muskmelon cultivars Foster et al 2001.

Muskmelon diseases. Downy Mildew Pseudopernospora Cubensis. 17Muskmelon and watermelon fruit also may have anthracnose lesions that appear sunken and round and may be orange or salmon-colored Figure 5. The most striking diagnostic symptoms are produced on the fruit where circular black sunken cankers appear.

3Competitive Grant Report 01-21 management of muskmelon diseases weeds and insect pests in partnership with Evaluating sustainable integrated Iowa growers Abstract. The muskmelon form infects only Cucumis melon which includes muskmelon cantaloupe crenshaw melon and honeydew melon. Often an amber colored ooze comes from the spot.

Infected roots hamper proper plant nutrition. When we began investigating this pathosystem in 2000 we tried several semiochemical strategies to lure cucumber beetles away from production fields. Sol Real Novartis Cantaloupe.

Small white spots may erupt on the surface of infected butternut and acorn squash and pumpkin fruit. On fruit gray water soaked spots form. Our research on cucurbit bacterial wilt is branching into many exciting areas.

Stem lesions can girdle the stem and cause vines to wilt. These diseases were named differently muskmelon yellows melon yellows cucumber infectious chlorosis cucumber chlorotic spot but symptoms in cucurbits were similar to those caused by BPYV. It is caused by a soil-inhabiting nematode of the Meloidogyne family.

Before resistant varieties were developed it was not unusual for growers to lose up to 100 percent of a watermelon or muskmelon crop where the soil was thoroughly infested with the Fusarium wilt fungus. The center of the spot drops out leaving a ragged hole. Because the fungus does not overwinter in the North the disease is reintroduced each season by airborne conidia blown into the area from southern states.

Such lesions often start on the lower surface of the fruit where moisture accumulates. Generally at initial stage small irregular yellowish lesions appear on leaves. 600 ABCD 6 AB Valley Pac Asgrow Cantaloupe.

Old lesions which become necrotic are clearly demarcated with light yellow areas. Anthracnose caused by the fungus Colletotrichum lagenariumi is probably the most destructive disease of cucurbits or vine crops in warm seasons with frequent rains. 600 ABCD 4 BCD Goldmine Harris Moran Cantaloupe.

Lesions develop thin brown borders and the centers may become brittle and crack. Vegetable Diseases Anthracnose of Cucumber Muskmelon and Watermelon wwwbtnypurdueedu Author Daniel S. It is often called the cantaloupe root wilt.

29Everything you need to learn about controlling diseases of muskmelon. 675 ABC 4 BCD Impac Asgrow Cantaloupe. Diseases and their Management.

Further molecular characterization of these different viruses showed that they had nearly identical sequences to BPYV indicating that they were indeed isolates of BPYV Coffin and Coutts 1995. Powdery Mildew Melon plant leaves can contract powdery mildew a fungal disease that leaves foliage and plant stems coated in a. Several distinct races of both fungi have been identified.

675 ABC 4 BCD Primo Novartis. Water soaked lesions are seen on the leaf which later become yellowish irregular spots. The disease occurs worldwide.

Foliage spots are irregular and turn dark brown or black. 650 ABC 5 ABC Hymark Peto Cantaloupe. Keep the rows spaced from each other and keep the melons elevated.

22varieties with higher disease severity Variety source Melon Type Vine decline Root symptoms. Angular light brown spots form on the leaves. For determining the causal agent of the leaf lesions surface-sterilized leaf tissue was placed on potato dextrose agar PDA plates amended with 50 mgL streptomycin sulfate and incubated at 25 C in the.

Disease and Pests of Muskmelons and Watermelons BP-44 html MelCast Melon Disease Forcaster BP-64-W pdf Muskmelon and Watermelon Fungicide Guide for Indiana 2011 and Muskmelon and Watermelon Management Time Line BP-134-W pdf Preventing Seedling Diseases in the Greenhouse BP-61 html. The basal stem region. Losses have been greatest on watermelon muskmelon cucumber gourds and to a lesser extent on West Indian gherkin and chayote.

SymptomsThe younger roots are the worst affected. Initial symptoms of disease are small dark water-soaked spots on the leaves which turn beige to white in dry conditions. 7In 2014 muskmelon leaves with foliar diseases composed of necrotic flecks and chlorotic lesions Fig.

10232019 94808 AM. 1a were observed at 15 incidence in commercial fields in Beijing municipality of China. 3The disease is most important in the Northeast on muskmelon pumpkin and winter squash though all cucurbits are susceptible.

23Diagnosis and Control of Muskmelon Diseases Author. 30Other common muskmelon diseases are yellow mosaic virus watermelon mosaic virus yellow stunt disorder monosporactus root rot sudden wilt and angular leafshop. Several ways to decrease grower reliance on chemicals in muskmelon production were studied.

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