tomato wilt virus is a diseases true or false
Answers
Yes its true ...
Tomato wilt is caused by virus..
MORE ABOUT TOMATO SPOTTED WILT VIRUS
Tomato spotted wilt, first described in Australia in 1919, was later identified as a virus disease
CAUSES
FIRST STAGE
Spotted wilt is caused by thrips, which are small insects that feed on a variety of plants by puncturing the leaves and sucking the plant’s contents
SECOND STAGE
Thrips contract the virus while they are in the larval stage and feed on infected plants, such as weeds. They then transmit the virus as adults, flying from infected plants to healthy plants.
SYMPTOMS
An infected tomato has a number of visible characteristics. Symptoms include bronze-colored or dark-spotted leaves, stunted growth, dark streaking in the plant’s terminal stems, and possible die-back of the plant’s growing tips.
Ripe fruit has a distorted shape and may be covered with red and yellow ring-like markings.
TREATMENT
There is no treatment for spotted wilt once a plant is infected, but there are steps you can take to control and reduce the incidence of the virus.
THANK YOU FOR SUCH A BEAUTIFUL QUESTION
Answer:
True.
Explanation:
Damage symptoms
Damping off of tomato occurs in two stages, i.e. the pre-emergence and the post-emergence phase.
In the pre-emergence the phase the seedlings are killed just before they reach the soil surface.
The young radical and the plumule are killed and there is complete rotting of the seedlings.
The post-emergence phase is characterized by the infection of the young, juvenile tissues of the collar at the ground level.
The infected tissues become soft and water soaked. The seedlings topple over or collapse.
Favourable conditions
High humidity, high soil moisture, cloudiness and low temperatures below 24° C for few days are ideal for infection and development of disease.
Crowded seedlings, dampness due to high rainfall, poor drainage and excess of soil solutes hamper plant growth and increase the pathogenic damping-off.
Survival and spread
Primary: Soil, Seed, Water
Secondary: Conidia through rain splash or wind.