Fruit Tree Problems: Multiple Choice Questions on Arecanut Diseases

In my previous post I posted MCQs on Fruit tree Problem: pomegranate diseases. Today I am going to post MCQs on areacanut diseases. You can answer in the comment section.

Q 1 Mahali/Koleroga disease of arecanut was first reported by

a. Butler in 1904 from Mysore	c. Coleman in 1905 from Mysore
b. Butler in 1906 from Mysore	d. Coleman in 1910from Mysore

Q 2 Mahali disease is caused by

a. Phytophthora meadii	c. both of these
b. Phytophthora arecae	d. None of these

Q 3 Following factor play an important role in spread of mahali disease of arecanut

a. Low temperature & high humidity	c. both of these
b. Close plantation	d. None of these

Q 4 Mahali/koleroga disease of arecanut can be successfully managed by prophylactic sprays of

a. Bordeaux mixture(1%) and Metalaxyl MZ(0.2%)	c. Bordeaux mixture(1%) and Hexaconazole(0.2%)
b. Bordeaux mixture(1%) and Carbendazim (0.1%)	d. All of these

Q 5 Bacterial leaf stripe of arecanut is caused by

a. Xanthomonas campestris pv. arecae	c. Pseudomonas campestris pv. campestris
b. Pseudomonas campestris pv. arecae	d. Xanthomonas campestris pv. campestris

Q 6 Favourable temperature for bacterial leaf stripe development in arecanut is

a. 26-30oC	c. 26-28oC
b. 25-28oC	d. 25-30oC

Q 7 Bacterial leaf stripe of arecanut can develop faster under

a. 85-90% RH	c. 80-85% RH
b. 60-75% RH	d. 70-85% RH

Q 8 Anabe roga of arecanut is caused by

a. Ganoderma lucidum	c. Ganoderma applanatum
b. Ganoderma australe	d. Ganoderma lingzhi

Q 9 Bud rot of arecanut is caused by

a. Phytophthora palmivora	c. Phytophthora cactorum
b. Phytophthora parasitica	d. Phytophthora nicotianae

Q 10 Yellow leaf spot disease of arecanut is caused by

a. Curvularia sp.	c. Colletotrichum sp.
b. Phyllosticta sp.	d. all of these.