17. in detected by visual observation of the black galls. #The tundu disease of wheat is usually associated with nematode known as – anguina tririci #Udabatta disease of rice is due to — Ephelis oryzae #Ring rust of Aonla is caused by – Ravenellia emblica var. Name the disease causing telltale spider web type webbing on the plant. • They cause diseases • They do not cause diseases • They are of no use • They attack only plants Answer: They do not cause diseases fructoidae Nematode associated tundu disease of wheat is - 3519841 Anguina tritici was the first plant parasitic nematode to be described in the literature in 1743. tundu disease of wheat seeds which is caused by nematode Anguina tritici (Steinbuch) Chitwood. Black rust Disease symptoms. Tundu (yellow spike disease) is caused by the bacterium Corynebacterium tritici in association with the seedgall nematode Anguina tritici. a) Spider mites b) Mealybugs c) Aphids d) Citrus canker. 1) Citrus dieback, 2) Karnal bunt of wheat, 3) Potato witches' broom, 4) Tundu disease of wheat, 5) NULL Disease is prominent when temperature is 10-20°C and high humidity. Tundu disease of wheat is caused due to _____: (a) Anguina tritici & Clavibacter tritici (b) Alternaria triticina (c) Alternaria burnsi (d) Alternaria solani 12. Symptoms are produced on almost all aerial parts of the wheat plant but are most common on stem, leaf sheaths and upper and lower leaf surfaces. c) Tundu disease of wheat d) Rhizoctonia. Bacterial diseases can be commonly found in rice, wheat, potato and som variety of fruits such as apple, pear, cherries and peaches. Which of the following diseases of plants causes lesions in leaves, stems and fruit? • Karnal bunt of wheat • Potato witches’ broom • Tundu disease of wheat Ans: Tundu disease of wheat Questions: What is the role played by non-pathogenic bacteria? It causes a disease in wheat … The summer heat in the plains is so intense that the survival of rust on weeds or on any other substrate is not possible. 6)Tundu disease or yellow slime disease of wheat: casual organism: Anguina tritici (Nematode) + Corynebacterium tritici or Clavibacter tritici . It appears in the form of crown gall in fruits, tundu disease in wheat, ring or brown rot in potatoes and as blight in rice. As reported by earlier workers, seedgall nematode causes earcockle in wheat and acts as a vector of C. tritici, which is responsible for causing tundu. Along with this discolouration of seed and morphological abnormalities are analyzed by visual observation of seeds. 16. Agriculture MCQ: Tundu disease of wheat caused by Clavibacter tritici is usually associated with(Agriculture MCQ) Heterodera avenae Anguina Tundu disease is often known by names like “yellow ear rot of wheat”, “tundu disease of wheat”, “bacterial rot of wheat ears”, “bacterial spike blight”, and “yellow slime disease”. Symptoms: The tundu disease is characterized by the twisting of the stem, distortion of the ear head and rotting of the spikelets with a profuse oozing of yellow liquid from the affected tissues.

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