This page highlights non-chemical practices to prevent or manage common insect and disease problems of cucumber, pumpkin and squash. Use floating row covers to protect young fruit on parthenocarpic varieties, and spray pyrethrum on other cucumber varieties. The cucumber fruit varies in shape but is generally a curved cylinder rounded at both ends that can reach up to 60 cm (24 in) in length 10 cm (3.9 in) in diameter. Bacterial wilt, Phytophthora Blight and Fusarium Wilt are three diseases mentioned in this article. The symptoms of cucumbers with anthracnose disease are often confused with other foliar diseases, which makes anthracnose control in cucumbers difficult. Fruits may be pointed at the blossom end. Problem: Cucumber Mosaic Affected Area: Leaf, Flower, Stem, and Growth Description: In cucumber, melon, and squash, cucumber mosaic virus causes severe plant stunting, prominent foliar yellow mosaic, malformation, prominent downward leaf curling, and drastic reduction of leaf size and stem internodes. One of the more common diseases is powdery mildew. Most of them are fungal infections. Specific ways to prevent a fungal cucumber disease is to be aware of the amount and location of water. To quickly solve this problem, spray your plants with dilute fish emulsion or … An insect named cucumber beetle brings this disease to cucumber plants. You can avoid these problems by choosing diseases-resistant cucumber varieties. The cucumber plant produces yellow flowers that are 4 cm (1.6 in) in diameter. For more detailed information follow the links in each section. Luckily, many varieties are disease tolerant or resistant. This is identified by white, mildew-like patches on the leaves. Anthracnose in cucumber crops can cause serious economic losses to commercial growers. Plant Diseases. Cucumber Insects & Diseases. If the leaves on your cucumber plants are pale and turning yellow, especially the lower leaves, the soil may be lacking in nitrogen. Remove plant debris from the garden after harvest, since many diseases survive on plant debris from year to year. Let’ see the cause, syndromes, and prevention. Unfortunately, there are plenty of insect pests that might get to the cucumbers before you do or transmit diseases, rendering plants unable to produce. This disease also afflicts most other cucurbits as well as many non-cucurbit species. Cucumber beetles can cause the most damage, particularly to seedlings, and carry wilt disease from plant to plant. Healthy cucumber plants will provide the gardener with a bountiful harvest of the delicious, crisp fruit, sometimes too bountiful. The leaves of the plant are arranged alternately on the vines, have 3–7 pointed lobes and are hairy. Tolerance means the plant … Bacterial Wilt. These insects and diseases are common on many plants in the squash family, including winter squash, zucchini, watermelon, muskmelon and gourds. There are a number of diseases that affect cucumbers. Also check for stunted growth and undersized leaves. More information about growing cucurbit plants is available in the fact sheets: HGIC 1304, Cantaloupe & Honeydew Melon ; HGIC 1309, Cucumber ; HGIC 1321, Summer Squash ; and HGIC 1325, Watermelon . Avoiding handling the plant too much also can help, because many fungal diseases enter plants through a breach in the plants… The major insect pests that attack cucumbers include cucumber beetles, aphids, and spider mites. The leaves of cucumber plants can die of diseases. 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