Several type of fungous disease can affectpumpkins(Cucurbita pepo ) as well as other gourd in the family Cucurbitaceae , which also includes zucchini and watermelons . One way to avoid these disease is to plant immune kind . Cultural practices and preventative manipulation of antimycotic agent are also helpful .
Powdery Mildew on Pumpkins
Pumpkin leaves turning blanched is usually an meter reading of a disease known as powdery mildew , which manifests as a powdery white substance on leaf Earth’s surface . Unchecked , a powdery mold contagion can result in defoliation of the flora .
While this condition affects many types of plant , in phallus of the cucurbit household , it is usually make by the fungiPodosphaera xanthiiandErysiphe chicoracearum .
Cercospora Leaf Spot
The disease eff as Cercospora foliage blot is have by the fungusCercospora citrullina . Dark brown lesions with idle tan or white center emerge on older leaves and spread . The leaf tissue around the blot may turn yellow . The speckle often dry out out and devolve off , leave holes in the foliation .
This disease develops on wet leaves , especially when temperatures are between 79 and 90 ° degree Fahrenheit . In some case , the disease can diffuse to the stems and leafstalk .
Gummy Stem Blight
get by the fungal pathogenDidymella bryoniae , gummy stem blight produces brown spots that finally engulf the leaf . The vernacular name of this disease is a reference to the sticky browned substance that exude from wounds , or canker , on the bow of infected plants . finally , the intact vine succumbs to the disease .
rehearse crop rotary motion , keeping the industrial plant leaves and stems dry when watering and removing dust from the garden bed at the end of the growing season can help keep this disease in stoppage . It is also important to raise pumpkins using disease - free seeds , as the disease might be seedborne .
Verticillium Wilt in Pumpkins
Verticillium wilt , which affect pumpkin vines and farewell , is stimulate by the fungusVerticillium dahliae , which can survive in the soil for up to 10 years .
The disease ordinarily appears after the vines have set yield . It begin with leaves wilting and drying up . This disease usually affects one side of the vine .
Managing Fungal Diseases of Pumpkins
There are cultural practices that can help control the fungous pathogen that taint pumpkins .
Cleaning Up the Patch and Removing Weeds
It is crucial to understand that the fungi that cause pumpkin diseases overwinter on plant life debris and mulch . Therefore , clean up the pumpkin patch and get rid of weeds at the end of the growing season is of the essence .
The fungi that cause pumpkin diseases overwinter on plant debris and mulch .
Practice Crop Rotation
Because fungal pathogens can loiter in the soil , it is always a good estimate topractice harvest revolution . This means not growing pumpkins where you have grow autumn pumpkin or other cucurbit crops in the last two or three years .
It is also of import to grow pumpkin vine using disease - loose ejaculate , as some diseases might be seedborne .
Provide Good Air Circulation and Avoid Overhead Watering
Fungal disease thrive in dampish conditions . Therefore , providing your pumpkin plants with skilful melodic phrase circulation and keeping the leaves juiceless by forbear from overhead lacrimation are also important to check pumpkin diseases .
Fungal disease thrive in damp conditions .
Consider Applying Preventative Fungicides
chemic command is sometimes necessary to control fungal disease . Preventative antifungal agent for pumpkin disease include chlorothalonil , and mancozeb can also be helpful . When using these products on edible crops , it is of import to follow Cartesian product directions for safety machine purposes .
References
Related
