Cucumber bacterial wilt is caused by the bacterium, Erwinia tracheiphila, and is portrayed at first by shrinking and drying of individual leaves, particularly those showing cucumber creepy beetle damage. Cucumbers and muskmelons are more vulnerable than pumpkins or squash; this infection is not very common an issue with watermelons.
Bacterial Wilt of Cucumber
Symptoms
Tainted plants at first show shriveling and drying of individual takes off. As the leaves shrink and wilt, stems may dry out all of a sudden. Afterward, withering spreads to whole branches and vines. Withering will happen amid the center of the day amid periods with high water pressure. The vine may recoup around evening time. In the long run, in any case, the whole vine will shrink, crumple, and pass on. In somewhat safe plants, indications show up as overshadowing, inordinate blossoms, and spreading.
Diagnosis
A decent analytic test for this wither is to cut a shriveled stem close to the base. Touch a blade sharp edge to the remove and draw from the cut. White to clear strings of the bacterial overflow will be unstable from the cut made on the contaminated plant to the blade edge. This analytic test isn’t 100% dependable. Encourage examination might be essential.
Life Cycle
The microscopic organisms overwinter in the stomach related arrangement of the cucumber bug. In the spring, bacterial shrink is spread from plant to plant through both the striped and spotted cucumber creepy crawlies that eat cucumbers and different relatives of this family. The microscopic organisms are discharged through the creepy crawly fertilizer and move into have plants through the stomates and wounds, probably the ones made when the bugs bolster. Bugs ingest more microorganisms as they feast upon contaminated plants, and the cycle is rehashed.
Coordinated Pest Management Techniques
- Ensure plants with mesh. Keep cucumber creepy beetles from nourishing and tainting plants by covering them with mesh or permeable texture.
- Expel and annihilate plant material when side effects of withering are first taken note. There are no cures for the illness. Scarabs spread the bacterium from tainted plants to sound plants.
- Develop defenseless products on pivot each third year. Since insects overwinter in the dirt and convey the bacterium, the cycle can be disturbed by just planting the host in a zone each third year.
- Abstain from planting cucurbits beside corn. Spotted cucumber hatchlings likewise eat corn; keeping away from close plantings of these two harvests may help control the creepy crawlies on cucurbits.
- Develop assortments that endure bacterial shrink like butternut or acorn squash and Saladin or County Fair 83 cucumbers. No muskmelon assortments are known to be tolerant to bacterial wilt.
- Clean plants with bug spray in the spring before the cucumber bugs have an opportunity to lay eggs (April-June). Use pyrethrin or carbaryl (Sevin). Try an insecticide-bait combination for example Adios that has cucurbitacin, the beetle attractant, and a small amount of carbaryl (Sevin).
Organic Techniques
Technique 1, 2, 3, 4, and 5 are organic techniques.
More Pictures
Diagnostic test for bacterial wilt of cucumber.
Bacterial wilt of cucumber beginning on a cucumber plant
Collapsed cucumber plant due to bacterial wilt
