Jatropha Curcas is getting value commercially as the need of nonrenewable fuel sources increases tremendously and also jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel substitute and it is also very economical compared to other fuels. Recently, jatropha curcas is dealing with some trouble with insects and illness. The pests are categorized into two varieties: Pest that impact young plants and Pest that affect matured plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently referred to as Cut worm. This pest affects 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 shrunk the plant entirely.
Control: This pest can be managed by choosing the larva discovered around the plants or by mixing 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 concerns the root. The larva attack might eliminate the entire plant.
Control: The plant with good resistance power can get rid of the pest. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the pest.
Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The severe infection could totally eliminate the plants.
Control: Insecticides are utilized to control the bugs.
Grasshopper: This prevails insect discovered in a number of plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The insect typically attacks the young plant.
Control: The insecticides utilized betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.
Pest observed in fully grown plants:
Pest of Stem: Ostrinia furnacalis, Xyleborus spp.
Ostrinia furnacalis and Xyleborus: This insect damages the Jatropha stem and it is extensively seen in Indonesia. The stem attacked by this pest normally drop. The presence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide generally utilized to manage this insect is carbofuran.
Pest of leaf: The typical bugs observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This insect can eat all the leaves of the plant in other words duration. The quality and yield of the seeds get minimized due to the heavy attack.
Control: This can be managed by selecting the old larvae around the surface area and getting rid of the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces 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 mainly in tropical and subtropical regions. The bug targets the leaf and draws all the nutrients of the leaf and gets curls at the tip. Later, the whole leaf dry and pass away.
Control: The heavy attack can be controlled by using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also attacks the leaf and makes the whole plant weak. The bug presence can be recognized when the leaf become yellow-colored, diminishes, turns red and drop. The pest can also be spread out through fallen leaves.
Control: Some preventive measures can be done like appropriate sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.
Some dreadful bug which attacks flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a severe bug which attacks the plant throughout bloom duration so the crop yield entirely drops. This pest is seen around the tropical region.
The hazardous enzyme in the plant diminishes the whole plant.
Control: Insecticides advised for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and .
Tip borer caterpillar: The bugs commonly happens attacks the plant in blooming season and this pest is seen extensively in tropical areas. The female insect laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant ideas.
Control: Manually, the assaulted seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
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Pests Of Jatropha
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