Guru GyaanAgroStar Agronomy Centre of Excellence
Management of leaf miner in lemon fruit trees
Infestation of this pest is more prevalent in citrus nurseries.
The caterpillars are pale yellow and light green.
Larva feed on the epidermis of the leaves by forming circular tunnels leaving a silvery white appearance on the surface of the leaves.
This pest helps in spreading of citrus canker, a bacterial disease.
The damage caused by this insect also causes the leaves to curl, in which mealy bugs sometimes hide.
Do not prune trees at the time of new flush. Do it only once in the winter.
Incidence of the insect reduces when the new branches become hard.
Avoid excessive use of nitrogenous fertilizers
Infestation of this pest is less in citrus orchards with drip irrigation.
Suckers (water sprouts) may often develop on tree trunk on small trees which provide the shelter to this pest, so remove them.
Collect & remove the infested leaves especially in nurseries.
Install 5 pheromone traps per acre to control this pest.
On initiation of this pest, spray neem oil @ 50 ml or neem base formulations @ 20 ml (1% EC) to 40 ml (0.15% EC) per 10 lit of water or neem cake extract @ 1 kg or neem/ Naffatia leaf extract @ 1 kg per 10 lit of water.
On higher incidence, spray imidacloprid 17.8 SL @ 5 ml or methyl-o-demeton 25 EC @ 10 ml per 10 lit of water. Apply carbofuran 3G @ 30 kg or phorate 10 G @ 15 kg per hectare in soil around the trees.
Since the infestation of this pest is much more on new leaves, spray the insecticide properly.
Source: AgroStar Agronomy Center of Excellence
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