Fruit Tree Problems: Multiple Choice Questions on Cocoa Diseases

 Previous post during last year was on Fruit Tree Problems: MCQs on Arecanut Diseases. This year I am continuing with other set of questions. You may answer these in comment section

Q 1 Phytophthora palmivora causes _____________________ disease of cocoa

a. Seedling die back	c. Black pod disease
b. Stem canker	d. All the above

Q 2 White thread blight is caused by

a. Marasmius scandens	c. Botryodiplodia theobromae
b. Colletotrichum gloeosporioides	d. Oncobasidium theobromae

Q 3 White thread blight spread through

a. Contact of branches	c. Contact of plant to plant
b. Contact of mycelium	d. Dead leaves carried by wind

Q 4 Characteristic symptom(s) of Black pod diseases of cocoa

a. Appearance of brown spots on pods	c. Both a and b
b. Discoloration of brown spots & infected beans	d. None of these

Q 5 Favourable conditions for black pod

a. High density plants accompanied with shady location with cool temp.	c. HDP with RH upto 90% and Temp 30-35oC
b. High density plants in rainy weather with high temperature	d. HDP with RH >95% and Temp 30-35oC

Q 6 Charcoal pod rot of cocoa is caused by

a. Marasmius scandens	c. Botryodiplodia theobromae
b. Colletotrichum gloeosporioides	d. Oncobasidium theobromae

Q 7 Asexual fruiting body produced by Botryidiplodia theobromae

a. Acervulus	c. Pseudothecium
b. Pycnidia	d. Apothecium

Q 8 Causal organism of cocoa swollen shoot is

a. Phytoplasma	c. Bacteria
b. Virus	d. Fungus

Q 9 Characteristic symptom of cherelle rot is

a. Shrunken infected stalk with mummified fruit	c. Both a. and b.
b. Brown discolored beans under high humid conditions	d. None of these

Q 10 Vascular streak dieback of cocoa has been reported only from

a. Tamil Nadu	c. Karnataka
b. Kerala	d. Telangana