Jatropha Curcas is getting importance commercially as the need of nonrenewable fuel sources increases enormously and also jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel substitute and it is also extremely affordable compared to other fuels. Recently, jatropha curcas is dealing with some trouble with bugs and illness. The insects are classified into two ranges: Pest that affect young plants and Pest that affect grown plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically understood as Cut worm. This bug affects the seedlings and young Jatropha 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 insect can be controlled by choosing the larva found around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This pest ruins the root of the young plant. Initially, the larva consumes the raw materials present in the soil and after that concerns the root. The larva attack may kill the entire plant.
Control: The plant with excellent resistance power can overcome the pest. For heavy attack, insecticides with parts carbosulfan and carbofuran can be utilized to kill the pest.
Army worm: Spodoptera litura existence can be identified by biting in the leaves. The severe infection might completely eliminate the plants.
Control: Insecticides are utilized to control the insects.
Grasshopper: This is common pest discovered in several plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The bug typically 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 bug harms the jatropha curcas stem and it is extensively seen in Indonesia. The stem attacked by this pest usually drop. The existence 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 insects observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This bug can consume all the leaves of the plant simply put duration. The quality and yield of the seeds get decreased due to the heavy attack.
Control: This can be managed by selecting the old larvae around the surface area and getting rid of the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when allowed to exposure to skin as it produces particular chemical compound. Initially the insect crowded in the leaf and after that spread out all over the plant when it grows older.
Control: Manually, the bug can be eliminated only by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.
Leaf Hopper: This pest is found mostly in tropical and subtropical areas. The insect targets the leaf and draws all the nutrients of the leaf and gets curls at the pointer. Later, the entire leaf dry and die.
Control: The heavy attack can be controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also attacks the leaf and makes the entire plant weak. The pest presence can be identified when the leaf become yellowish, diminishes, turns red and fall down. The pest can likewise be spread through fallen leaves.
Control: Some preventive steps can be simulated correct 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 major bug which assaults the plant throughout bloom period so the crop yield entirely falls down. This bug is seen around the tropical region.
The hazardous enzyme in the plant diminishes the entire plant.
Control: Insecticides recommended for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The insects commonly occurs attacks the plant in flowering season and this insect is seen widely in tropical regions. 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 recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
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Pests Of Jatropha
Huey Tildesley edited this page 5 months ago