Press Esc to close
Tuesday 21 April 2015
News updated at 3:07 AM IST
Weather
Max: 33.4°C
Min : 21.6°C
In Bengaluru
Sunny day

Stem borer menace haunts mango growers in Srinivaspur again

Srinivaspur, Oct 7, 2012, DHNS

The stem borer menace has made its appearance in the mango farms of Srinivaspur taluk.

Mango suffers from several diseases at all stages of its life. All the parts of the plant, namely, trunk, branch, twig, leaf, petiole, flower and fruit are attacked by a number of pathogens including fungi, bacteria and algae.

They cause several kinds of rot, die back, necrosis, blotch, spots and mildew. Some of these diseases, including stem borer menace, are of great economic importance as they cause heavy losses in mango production.

Stem borer is widely distributed in India and attacks a variety of fruit trees including mango.  Damage is caused by the grub of this beetle as it feeds inside the stems boring upward resulting in drying of branches and in severe cases attained stem also dies.

Adult beetles, 35-50 mm in size, are stout and greyish brown in colour with dark brown and black spots. Eggs are laid either in the slits of tree trunk or in the cavities in main branches and stems covered with a viscous fluid. Pupation takes place within the stem.
The mango stem borer does not appear in all mango-cultivating areas but in the areas where it is found it causes severe loss.

The important symptoms of the infestation are the holes on the bark due to feeding. The stem borer menace stunts the growth of the mango tree. At later stage of infestation the mango trees dry up.

The pest can be managed by pruning off the infested twigs of tree and destroying the larvae of the insect. They can also be controlled by the use of various chemical applications. Prof Nachegowda of the Horticultural College in Kolar says that the stem borer has been seen mostly in the Badami variety of mango. This is because of the sweetness and taste of the core of the tree trunk, he said.


Go to Top

Photo Gallery
Minister U T Khader and MLA Vasanth Bangera stopping Minister B Ramanath Rai who got angry on ...

Minister U T Khader and MLA Vasanth Bangera stopping Minister B Ramanath Rai who got angry on ...

Yuvraj Singh of Delhi Daredevils plays a shot during their IPL match against Kolkata Knight Rider...

Yuvraj Singh of Delhi Daredevils plays a shot during their IPL match against Kolkata Knight Rider...

Police force at a large number being deployed for Left Front activists 'March to Lalbazar Kolkata...

Police force at a large number being deployed for Left Front activists 'March to Lalbazar Kolkata...

Kolkata Knight Riders players celebrate the wicket of J P Duminy (C) of Delhi Daredevils during ...

Kolkata Knight Riders players celebrate the wicket of J P Duminy (C) of Delhi Daredevils during ...

Traditional elephant fights, elephant races, tug of war and dances mark this festival which coincide

Traditional elephant fights, elephant races, tug of war and dances mark this festival which coincide

Villagers struggle to get drinking water from an almost dried well near Tansa dam, in Shahapur ...

Villagers struggle to get drinking water from an almost dried well near Tansa dam, in Shahapur ...

Prime Minister Narendra Modi at the foundation stone laying ceremony of Dr. Ambedkar International

Prime Minister Narendra Modi at the foundation stone laying ceremony of Dr. Ambedkar International

Narendra Modi talking with BJP veteran LK Advani during 'Garib Kalyan Yojana',...

Narendra Modi talking with BJP veteran LK Advani during 'Garib Kalyan Yojana',...

A view of the Kedarnath Shrine before it reopens on April 24 for general public...

A view of the Kedarnath Shrine before it reopens on April 24 for general public...

Snowed down surroundings of Kedarnath Shrine before it reopens on April 24 for general public...

Snowed down surroundings of Kedarnath Shrine before it reopens on April 24 for general public...

Copyright 2014, The Printers (Mysore) Private Ltd., 75, M.G Road, Post Box 5331, Bengaluru - 560001
Tel: +91 (80) 25880000 Fax No. +91 (80) 25880523