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Management of Major Diseases of Tomato
- , by Agriplex India
- 3 min reading time
Tomato is one of the main vegetable crops of India. It is widely cultivated both in open fileds and in Polyhouse. The tomato crop is susceptible to many diseases infestations. This blog provides strategies for the effective management of major diseases of tomato crop.
Damping-off
It is caused by a soil borne fungus called Pythium. There are two types of damping off of tomatoes which are pre-emergence and post-emergence. In the pre-emergence the seedlings are killed just before they reach the soil surface. The post-emergence phase water soaked depression near the collar regions can be noticed which in later stages leads to collapsing or wilting of seedlings in portray.
Recommended products
Biological Control: Trichomax, Biocure F, Chirayu
Chemical Control: Ridomil Gold, Blitox, Blue copper, Aliette, Bavistin
Early blight
Early blight gets its name as the disease usually occurs during the early growth phase of crop. It is caused by a fungus called Alternaria. Symptoms can be seen as leaf spot and blight in concentric rings in a bull's eye pattern and tissue surrounding the spots may turn yellow.
Recommended products
Biological Control: Trichomax, Biocure F
Chemical Control: Upl M45, Splash, Anshul Dost, Amister top, Syngenta Revus
Late blight
Late blight is the most damaging disease which is caused by a fungus known as Phytophthora. It infects the leaf, stem and fruits of the plant and it spreads at a quicker rate than other diseases. Brownish black water-soaked lesions with oily appearance can be noticed on the leaf, fruit and in rare cases on the stem. In case of severe infections fruits show rotten appearance.
Recommended products
Chemical Control: Multiplex jodi, Folio Gold, Bayer Profiler, Kavach, Nativo
Wilt - Fusarium and Bacteria
Tomato Wilt can be caused by either Fungus or Bacteria or due to infestation by both. There is a minute symptomatic difference between both wilts. In fungal wilt plants generally turn yellow and then wilt and die but in case of bacterial wilt plants remain green and wilt all of sudden followed by plant death (Green wilting). Fungal wilt is caused by fusarium and Bacterial wilt is caused by Ralstonia.
Recommended products
Biological Control: Trichomax, Biocure F, Pseudomax, Biocure B, Nisarga, Sparsha
Chemical Control: Bactinash 200, Bavistin, Cystocycline, Blue copper, Dhanuka Conika, Nagcopper, Nagcarzim
Leaf Spot - Septoria
Septoria leaf spot is caused by a fungus known as Septoria. Symptoms can be noticed on the leaves as numerous minute spots which are Greyish to dark brown in colour.
Recommended products
Biological Control: Trichomax, Biocure F, Nisarga
Chemical Control: Anshul Suraksha, Multiplex Sergent or Multiplex Nagzol, Splash, Multiplex Speed, Multiplex Ziddhi
Powdery Mildew
Powdery mildew in tomatoes is generally not a major disease; the infestation is high during the early growth stages. It is caused by fungus which Initially produces light yellow spots which then will have a powdery like substance covering the entire leaf.
Recommended products -
Biological Control: Trichomax, Biocure F, Pseudomax, Biocure B, Nisarga, Sparsha
Chemical Control: Anshul Dost, Multiplex Jodi, Luna experience, Anshul liquid Sulphur, COntaf Plus, Folicure
Tomato leaf curl
This disease is caused by Tomato leaf curl Virus which is transmitted by Whitefly. Plants will have reduced internodes, emerging leaves will be cholorosis and curled upwards. Under severe infestation it will leads to shunting of plants.
Recommended products
Biological Control: Multiplex Baba, Multiplex Varsha
Chemical Control: Lancer gold, Confidor, Nagmida, Bright star, Anshul Ikon, Keefen, Multiplex Navathara
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