Potato
Stem borer
Symptoms
Affected plants have a hole at the base of the stem. The pest attacks all stages of the crop. Larval damage the central shoot
Control measures
To prevent potato stem borer infestations, maintain weed-free fields, borders, and fence- rows by plowing, cultivating, and using herbicides.
Pomegranate
Thrips
Symptoms
*Thrips are a significant sucking pest in pomegranates.
* It consumes sensitive shoots and leaves.
*Thrips severely damage twigs, leaves, blossoms, fruits, and other plant parts through desapping, which diminishes fruit quality and reduces crop yield.
*Honey dew – development of sooty mould fungus.
*Yellowing of leaves.
*Dropping of affected leaves. *Silvery streaks are formed on the fruits making them unfit for the marketing and fetches lesser price.
Control measures
*Yellow sticky traps can be installed in the field
*Trunk spray or injection of an effective, systemic, neonicotinoid insecticide can provide relatively rapid control.
*Spray neem oil 1.5ml / l
* Spray delegate having Spinetoram 11.7% SC.
Blight
Symptoms
The circular spots appear as irregular lesions during later stages. Gradually, the center of the spots become necrotic and turns dark brown. The pathogen also causes girdling and crackling of the stems and branches. In advanced stages of infection, tissue necrosis occurs on the leaves and twigs.
Control measures
Streptocycline in combination with copper oxychloride (0.2%) followed by Bronopol and copper oxychloride (0.2%) were found to be effective in the management of bacterial blight of pomegranate
Soak Neem leaves in cow urine and spray in order to control pests and plant pathogen.
Rose
Thrips
Symptoms
This damage is generally characterized by deformed buds that may only partially open, or even fall from the plant before full bloom. Thrips feeding on rose petals may also result in a flecking pattern on leaves near the affected buds. Thrips damage on roses is often more apparent on lighter-colored blossoms.
Control measures
*Yellow sticky traps can be installed in the field.
*Trunk spray or injection of an effective, systemic, neonicotinoid insecticide can provide relatively rapid control.
*Trunk spray or injection of an effective, systemic, neonicotinoid insecticide can provide relatively rapid control.
Downymildew
Symptoms
*Downy mildew causes light green to yellow angular spots on the upper surfaces of leaves. *The white fluffy growth of the pathogen develops on the lower sides of these spots. *With time these lesions turn brown and dry up. Older leaves are attacked first.
Control measures
*Increase air circulation and reduce excess moisture by thinning stems and reducing foliage where possible. *Proper spacing will also improve air circulation and help prevent spread of the disease. * Spray DITHANE M45 fungicide.
Mango
Leaf hopper
Symptoms
*Mango leafhoppers feed on vegetative flush tissue by sucking the sap. *They lay eggs into the underside of the mid ribs of young leaves. *Feeding and egg laying cause curling and distortion of new flush and young leaves. *Honeydew secretion leading to the formation of the sooty mould.
Control measures
*Spray imidachloprid or beta cyhalothrin to the leaves and the shoot to prevent the increasing population.
*Spray the starch solution to the leaves. After drying the sooty mould along with the starch detaches from the surface.