Diseases in Cucumber Cultivation

Diseases in Cucumber Cultivation

a. Late blight (Downy Mildew)
Cause: Pseudoperonospora cubensis Berk et Curt. Infects the skin of leaves at high humidity, temperature 16-22 ° C and dewy or foggy. Symptoms: Pholcadot yellow and moldy leaves, leaf color will be brown and rotten. Control: The Natural GLIO before planting.

b. Flour diseases (Powdery Mildew)
Cause: Erysiphe cichoracearum. Develop if the soil dry in summer with high of water. Symptoms: leaf surfaces and young stems covered with white powder, later changed to yellow and dry. Control: The Natural GLIO before planting.

c. Antraknose
Cause: The fungus Colletotrichum lagenarium Pass. Symptoms: brown spots on leaves. Form of patches or slightly rounded-corner angle and causes the leaves to die; patches symptoms may spread to stems, stalks and fruit. When the moist air, amid patches formed pink spore masses. Control: The Natural GLIO before planting.

d. Angular leaf spot
Cause: Pseudomonas lachrymans fungi. Spreads during the rainy season. Symptoms: Small yellow leaves and angled berbercak; on heavy attacks all the leaves turned brown Pholcadot gray, dry and hollow. Control: The Natural GLIO before planting.

e. Virus
Cause: Cucumber Mosaic Virus, CMV, Potato mosaic virus, PVM; Tobacco Etch Virus, TEV; otato Bushy Stunt Virus (TBSV); Insect vectors are aphids Myzus persicae Sulz and Aphis gossypii Glov. Symptoms: leaves become dark green stripes and light green, crinkled leaves, leaf edges rolled up, stunted plants. Control: to control the insect vectors with BVR or PESTONA, reducing mechanical damage, remove the sick and the rotation of crops with no Cucurbitaceae family.

f. Scabies (controlling scab)
Cause: The fungus Cladosporium cucumerinum Ell.et Arth. Occurs in young cucumber. Symptoms: wet spots out there that if cairam will dry up like rubber; when attacking an old fruit, formed a scabies. Control: The Natural GLIO before planting.

g. Rotten fruit
Cause: The fungus (1) Phytium aphinadermatum (Edson) Fizt.; (2) Phytopthora sp., Fusarium sp.; (3) Rhizophus sp., (4), Erwinia carotovora pv. Carotovora. Infection occurs in the garden or in storage. Symptoms: (1) Phytium aphinadermatum: wet and rotten fruit when pressed, the fruit broken, (2) Phytopthora: a little wet spot that will become soft and brown and wrinkled; (3) Rhizophus: somewhat besah spots, skin fungi grown soft fruit , fruit easily broken, (4), Erwinia carotovora: fruit rotting, decayed and foul-smelling. Control: to avoid mechanical injury, post-harvest handling are carefully stored in a clean container with a temperature between 5-7 degrees C. And provision of Natural GLIO before planting.