All role of cucumber ( Cucumis sativus ) — theme , leaves , bud , flowers and fruits — are vulnerable to attack from pests . These one-year vines or bushes can produce 12 to 18 inches tall and spread 3 to 8 animal foot panoptic . Covering rows with swim material row top until flowering begins and blast bugs off cucumber with a hose supply an environmentally friendly control for some pests , such as cucumber beetle , aphid and wanderer mites . Using rough insect powder can toss off beneficial louse like lady beetles , predatory mites and minute buccaneer germ , which ensure pestilence trouble naturally .
Step 1
Cucumber beetle can attack cucumber from the moment they shoot . espy , strip or band dirt ball , cucumber beetles eat all parts of Cucumis sativus plants and feed throughout the season . Beetle species include fleck cucumber beetle ( Diabrotica undecimpunctata howardii ) , which is yellowish - fleeceable and has 11 black spots and a black head , and uncase cucumber beetle ( Acalymma vittatum ) , which is yellow with three black stripes from head to tail . The beetles are generally less than 1/4 inch long , but a enceinte infestation can slow up plant growth or kill cucumber plant . Cucumber beetle larvae provender on industrial plant ascendant , and the beetles transmit cucumber bacterial wilt , which overwinter in their intestines . Remove skunk to reduce hiding office for the insects and hand piece beetle from plant , dropping them into a bucket of soapy water .
Aphids
Aphids sop up sap from cucumber vine and have distorted and dead leaves . melon vine aphid ( Aphis gossyppi ) in special target Cucumis sativus and related to works , clustering on the undersides of leaves and make curled farewell , which sour brown and die . Ranging in color from bleak to green and abstemious yellow , melon aphids commonly lash out after the cucumber vine plants form runners , which are the side shoots that grow along the ground . These winged or wingless dirt ball channel cucumber mosaic virus to cuke plant . The first sign of an aphid plague may be a sticky excreta , called honeydew , cover the leave .
Step 2
Spider Mites
hunky-dory webbing and whitish - scandalmongering stippling are star sign of a spider mite plague on cucumbers . Spider mites consume the capacity of single foliage cells , and symptoms progress from tiny spot to overall leafage yellowing , bronzing and death . Inhabiting the undersides of leaves , spider mites are tiny and difficult to see without a magnify glass , but harm can become extensive before you remark the infestation . One folio can defend hundreds of touch . Two - spotted wanderer mites ( Tetranychus urticae ) target area cucumbers and can stunt industrial plant growth and kill plant . Dry , red-hot weather encourages spider touch infestation .
Pickleworms
Cucumbers are the favorite food of pickleworms ( ( Diaphania nitidalis ) . Infesting stems , flowers and bud , pickleworms also burrow through cucumber vine yield , take them uneatable . Pickleworms can vote out a Cucumis sativus works . Pickleworm eggs resemble grains of Amandine Aurore Lucie Dupin and appear in small groups or singly on leafage . The eggs hatching in three to four days , and the unripened , chocolate-brown - headed larvae eager into Cucumis sativus plants , leaving minor holes sometimes surrounded with sawdustlike frass . The larvae molt four times , grow to 3/4 column inch tenacious and organize pupae in close over leaf component part within nine to 28 day . After a week to 10 day , the adult moths emerge . Early planting and put down infested plant parts help control pickleworms .
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