Jatropha Curcas is acquiring significance commercially as the demand of nonrenewable fuel sources increases significantly and likewise jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel alternative and it is likewise very cost-effective compared to other fuels. Recently, jatropha curcas is facing some trouble with bugs and illness. The bugs are classified into two ranges: Pest that impact young plants and Pest that affect developed plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically called 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 managed by picking the larva discovered around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This insect destroys 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 might eliminate the entire plant.
Control: The plant with great resistance power can get rid of the pest. For heavy attack, insecticides with parts carbosulfan and carbofuran can be utilized to eliminate the insect.
Army worm: Spodoptera litura existence can be identified by biting in the leaves. The severe infection could entirely eliminate the plants.
Control: Insecticides are used to control the bugs.
Grasshopper: This is common bug discovered in numerous plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The bug often assaults 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 curcas stem and it is commonly seen in Indonesia. The stem assaulted by this insect normally drop. The existence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide usually used to manage this bug is carbofuran.
Pest of leaf: The typical pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This pest can eat all the leaves of the plant in brief duration. The quality and yield of the seeds get lowered due to the heavy attack.
Control: This can be managed by selecting the old larvae around the surface and getting rid of the .
Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when allowed to exposure to skin as it produces specific chemical substance. Initially the insect crowded in the leaf and after that spread out all over the plant when it gets 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 bug is discovered primarily 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 utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also assaults the leaf and makes the entire plant weak. The insect existence can be determined when the leaf become yellow-colored, diminishes, turns red and drop. The insect can likewise be spread through fallen leaves.
Control: Some preventive procedures can be done like correct sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.
Some dreadful pest which attacks flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a major pest which attacks the plant during blossom period so the crop yield entirely drops. This bug is seen around the tropical region.
The poisonous enzyme in the plant shrinks the entire plant.
Control: Insecticides suggested for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs typically happens attacks the plant in flowering season and this bug is seen widely in tropical regions. The female pest 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
Delia McGuire edited this page 3 months ago