Jatropha jatropha curcas is gaining importance commercially as the need of nonrenewable fuel sources increases greatly and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel alternative and it is likewise very affordable compared to other fuels. Recently, Jatropha is dealing with some difficulty with bugs and diseases. The pests are classified into two varieties: Pest that affect young plants and Pest that affect matured plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically referred to as Cut worm. This insect impacts the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will diminished the plant entirely.
Control: This bug can be managed by choosing the larva discovered around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This insect damages the root of the young plant. Initially, the larva takes in the raw materials present in the soil and then comes to the root. The larva attack might eliminate the entire plant.
Control: The plant with excellent resistance power can overcome the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to kill the insect.
Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The severe infection could totally kill the plants.
Control: Insecticides are used to manage the pests.
Grasshopper: This is common insect discovered in a number of plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The insect typically assaults the young plant.
Control: The insecticides utilized betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.
Pest observed in mature plants:
Pest of Stem: Ostrinia furnacalis, Xyleborus spp.
Ostrinia furnacalis and Xyleborus: This pest harms the Jatropha stem and it is widely seen in Indonesia. The stem attacked by this insect normally drop. The existence can be determined by the larva penetration hole at the stem.
Control: The Insecticide generally used to control this insect is carbofuran.
Pest of leaf: The common pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This insect can consume all the leaves of the plant simply put period. The quality and yield of the seeds get minimized due to the heavy attack.
Control: This can be managed by picking the old larvae around the surface area and discarding the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spines and a burning experience when enabled to contact with skin as it produces specific chemical compound. Initially the insect crowded in the leaf and after that spread all over the plant when it grows older.
Control: Manually, the pest can be killed just by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.
Leaf Hopper: This insect is found primarily in tropical and subtropical areas. The pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the whole leaf dry and die.
Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise attacks the leaf and makes the entire plant weak. The insect presence can be identified when the leaf ended up being yellowish, diminishes, reddens and fall down. The bug can also be spread through fallen leaves.
Control: Some preventive measures can be done like proper sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some awful insect which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a serious pest which attacks the plant during blossom period so the crop yield totally falls down. This bug is seen around the tropical region.
The poisonous enzyme in the plant shrinks the whole plant.
Control: Insecticides advised for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The insects typically takes place attacks the plant in blooming season and this bug is seen widely in tropical areas. The female bug laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant suggestions.
Control: Manually, the assaulted seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
Blair Sands edited this page 1 month ago