Intercultural
operations in
vegetable crops
Experiment 6
Intercultural operations
1.Transplanting and hardening off
2.Weeding
3.Thinning and gap filling
4.Irrigation
5.Staking
6.Manures and fertilizers application
7.Training and pruning
8.Mulching
9.Application of PGRs
10.Insect-pest and disease control
11.Earthing up
12.Dehaulming
13.Blanching
14.Nipping
1. Transplanting and hardening off
Already discussed in 5
th
experiment.
https://www.youtube.com/watch?v=V1-K7qpuGYY&t=2s
2. Weeding
•Manual method
•Chemical method (Weedicides)
Time of application of
weedicides
1.Pre plant incorporation
(PPI)
2.Pre-emergence
3.Post-emergence
Application methods
1.Broadcasting
2.Band application
3.Foliar application
THERMAL WEED CONTROL
Pesticide-free thermic
weed control with a
weed burner on a
potato field in
Dithmarschen
MECHANICAL WEEDING DEVICE- THE
DIAGONAL WEEDER
LONG HANDLED WEEDERS
1.Circular blade
weeder
2.Garden rake
3.V blade
multipurpose
weeder
4.Grass slasher
5.Long handle
hand fork
Application of only fertilizers with
irrigation water is known as
a)Drenching
b)Fertigation
c)Both a and b
d)None
Which fertilizer is applied in split
dozes?
a)DAP
b)MOP
c)SSP
d)Urea
Training and pruning is required in-
a)Tomato
b)Bottle gourd
c)Cucumber
d)All of the above
8. Mulching
•Organic mulch
•Inorganic mulch
Advantages of Mulching
•Helps in quick germination of seed
•Increases crop yield
•Conservation of soil
•Regulation of soil temperature
•Controls weeds
•Increases soil fertility
•Crop protection
•Conserves soil moisture
•Provides more unified and tidy appearance to
field
Ideal Mulch
1.Easy availability
2.Easy application
3.Easy removal/soil incorporation
4.Economical
5.Fulfill the desired objectives
6.Free from noxious weeds, insects and diseases
9. Application of PGRs
•Types of PGRs
•Role of PGRs in vegetables
1. Cultural method
Hand picking
Clipping, pruning and crushing
Trapping and suction devices
2. Mechanical method
Pheromone trap Bird perch
Yellow sticky trap
3. Biological control
Egg parasitiods :
Trichogramma chilonis @ 50,000/ ha, four times
from 30 DAT - 20 days .
Larval parasitoids:
Pristomerus testaceus
Cremastus flavoorbitalis
Shirakia schoenobii
Bracon greeni
Netelia eggs are laid close
to the head of the host
caterpillar
An emerged Netelia pupal case These
pupal cases are found in the
underground pupal chambers of
parasitised helicoverpa
Adult Netelia wasp parasitising
a paralysed helicoverpa larva
Spraying of BT formulation @
2g/lt of water to reduce pod borers.
Bacillus thuringienis var kurstaki
@ 1500 ml/ ha
For sucking pests management:
•Acetamiprid0.2gm/lt of water
•Dimethoate2mlk/lit of water
•Imidacloprid0.4m/lit of water
•Thiomethaxom0.4gm/lit of water
•Monocrotophos1.6m/lit of water
•Oxy-demeton-methyl2ml/lit of water
•Fipronil 2ml/lt
For borers :
•Profenophos 50EC2ml/lit of water
•Thiodicarb (or)1.5gm/lit of water
•Indoxacarb1ml/lit of water
•Quinalphos3ml/lit of water
•Fenvalarate2ml/lit of water
For mites :
•Dicofol @5ml/lt of water
•Wettable sulphur @3g/lt of water
•Omite @ 2ml/lt
•Phosalone @2 ml/lt of water.
4. Chemical control
10. Disease management
•CULTURAL
•BIOLOGICAL CONTROL
•CHEMICAL
Which chemical is used to induce male
flower in cucurbits?
a)Ethephon
b)Silver nitrate
c)NAA
d)All of the above
Bt brinjal was developed against which
insect?
a)Jassids
b)Leaf hopper
c)Shoot and fruit borer
d)Aphids