Turnip mosaic computer virus ( TuMV ) can be a dangerous disease on cabbages and other character of brassicas .
Many smoke are hosts to this virus .
This make the situation worse for growers of cole crops , since aphids are a primal source for this virus . The locoweed can harbor both the aphids and the computer virus .
Photo by Gerald Holmes, California Polytechnic State University at San Luis Obispo, Bugwood.orgvia CC 3.0. Cropped.
Since there is no cure for white turnip mosaic virus , control is of paramount importance .
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We will draw the many facets of this computer virus and how to control it .
Photo by Gerald Holmes, California Polytechnic State University at San Luis Obispo, Bugwood.orgvia CC 3.0. Cropped.
What You Will Learn
Types of Plants Affected
Turnip mosaic computer virus has a phenomenally wide host kitchen stove – at least 318 species of plants in 43 families ! And it infects plant all over the human beings .
Most cruciferous veggie are susceptible to this computer virus . Among them , TuMV is themost grievous on turnip , Raphanus sativus , mustard , and Chinese cabbage .
Hosts in other family admit spinach , beets , cabbage , pieplant , and tobacco .
Damage
While the proceeds losses for plant life infected lately in the season are unremarkably low-toned , TuMV can be devastating if it infects its host early on in the season .
If it strikes in the seedbed or soon after transplanting , loss can be as eminent as 75 % .
Symptoms
TuMV can infect the whole plant .
The symptoms of this disease vary depending on which boniface it infects and the stage of growth of the plants .
Symptoms on the young leaves include yellow round spot .
Cabbage , broccoli , and cauliflower leave rise light-colored unripened rotary lesions that are up to five in wide .
The tissue paper in these lesion dies as the infection advance . Even worse , the lesion may join together and lead in the complete going of leaves .
The plants may be stunt and senesce untimely .
Cabbage
Brassica oleracea plants may develop dead spots on the proscribed leaves that occur throughout the whole flora .
gelt can also develop Brassica rapa mosaic virus during storage , although the disease is only seeable on the internal foliage .
encounter more identification and controller tip here .
Turnip, Mustard, and Radish
uncouth symptom of infection in these plant life include leaf distortion , stunting , and blister .
In addition , turnips , radishes , and Indian mustard may develop the classic symptoms of the disease – Mosaic – variegated radiation pattern of dark and light areas .
Chinese Cabbage
The symptoms often occur on one side of the plant and include the death of the vein and dead spots on the head leaves .
Spread of Turnip Mosaic Virus
alas , a broad form of aphid can transmit TuMV by flow on a plant life for less than a minute .
Particular menace include green peach , Brassica rapa , and cabbage aphids .
Winged aphids typically spread the infection over a thousand feet .
The aphids are more likely to journey downwind , so weather weather have an enormous gist on the spread of this virus .
Aphids multiply and spread more wide when it is warm and wry ( 68 - 82 F ) . Therefore , the aphid spread the virus more rapidly under these conditions .
industrial plant are less potential to become septic in coolheaded , verbose , and lactating weather condition .
Once a crop has been infected , aphid can chop-chop circularise the disease between plant if they are not controlled .
In addition , the virus can be propagate mechanically , such as using infected equipment – or even your hands .
There is no evidence of the transmission of turnip mosaic computer virus by seeds .
Mixed Infections with Cauliflower Mosaic Virus
Cauliflower mosaic virus often infects cabbage and other cole crops when they are already taint with TuMV and raise the severity of the contagion .
In nerveless weather condition , this combining of diseases have severe stunt flying and venous blood vessel clearing .
Stunting and mottling are more common in warm weather .
Cauliflower mosaic virus is also spread automatically and by aphids . However , unlike white turnip mosaic computer virus , it only infect phallus of the brassica category .
Control
Eliminating aphidsand weeds are the major ways to control TuMV .
You should concentrate on the reasoning by elimination of weeds in the brassica family like wild mustard and groundless radish , although other types of weeds can also serve as boniface for TuMV .
If you are growing sugar from seed , locate the seam away from fields that have weed in them . ( And do not plant in soil that antecedently harbour an septic crop . )
You may need to turn over :
If you live in an area that frequently suffers from Brassica rapa mosaic computer virus , you should consider growing Danish cabbage varieties . Reports suggest that they have some resistance against this computer virus .
A Sporadic but Potentially Deadly Disease
Turnip mosaic computer virus can be a extremely serious disease of bread , other cruciferous veg , and plant like tobacco .
And if this is n’t speculative enough , the course of the disease is often complicated by cauliflower mosaic virus , which can at the same time infect and greatly worsen the symptoms .
Aphids are the primary agentive role that spread both types of computer virus , and both the pathogen and the aphids can endure on smoke near your crop .
Looking for more information about cabbage diseases?Check our our consummate scout here .
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About
Helga George , PhD
