27th April 2022 (8 Topics)
1
Apr
2
Apr
4
Apr
5
Apr
6
Apr
7
Apr
8
Apr
9
Apr
11
Apr
12
Apr
13
Apr
14
Apr
15
Apr
16
Apr
18
Apr
19
Apr
20
Apr
21
Apr
22
Apr
23
Apr
25
Apr
26
Apr
27
Apr
28
Apr
29
Apr
30
Apr
Tea mosquito bug destroys Cashew crop
Context
Tea mosquito bugs have attacked acres of cashew crops in Odisha.
About
Tea Mosquito Bug:
- Scientific Name: Helopeltis antonii
- Tea mosquito bug is a major pest of cashew causing severe damage in several parts of the world.
- Among the four species attacking cashew, H. antonii is the dominant species.
- The pest has got potential to cause as high as cent per cent loss in yield.
- Season of occurrence:
- In general, TMB activity is very less during monsoon period (June- September) and the pest build up commences during October- November synchronizing with the emergence of new flushes after the cessation of monsoon rains.
- The population reaches a peak during December-January, when the trees are in full bloom while, the pest activity is seen till May unitl harvest.
- But, the pest incidence may be noticed throughout the year in young plantations.
Management
- Undertake pruning to regulate the shade to facilitate proper penetration of sunlight inside the canopy.
- Spray the following insecticides, thoroughly covering foliage and bark during early morning hours.
- Monocrotophos at new flush formation.
- Spray endosulfan or carbaryl in 1500-2000 L of water per ha and Urea 3% at flower initiation and again at fruiting time
- Do not interplant cashew with crops that are host for Helopeltis bugs, such as cotton, tea, sweet potato, guava and mango.
Courses
Study
Notes
Home
Resources
More
