Jatropha Curcas is acquiring value commercially as the demand of fossil fuels increases significantly and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel replacement and it is likewise very affordable compared to other fuels. Recently, Jatropha is facing some difficulty with pests and diseases. The bugs are classified into two varieties: Pest that affect young plants and Pest that affect developed plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically known as Cut worm. This bug affects the seedlings and young jatropha curcas plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant totally.
Control: This insect can be managed by choosing the larva found around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This insect ruins 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 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 used to eliminate the pest.
Army worm: Spodoptera litura presence can be determined by biting in the leaves. The extreme infection could totally eliminate the plants.
Control: Insecticides are used to manage the pests.
Grasshopper: This is typical pest discovered in several plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The pest typically attacks the young plant.
Control: The insecticides used 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 commonly seen in Indonesia. The stem attacked by this bug normally drop. The existence can be identified by the larva penetration hole at the stem.
Control: The Insecticide usually used to manage this bug is carbofuran.
Pest of leaf: The common insects observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This pest can consume all the leaves of the plant in other words period. The quality and yield of the seeds get reduced due to the heavy attack.
Control: This can be controlled by selecting the old larvae around the surface and tossing away the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when enabled to call with skin as it produces certain chemical substance. Initially the bug crowded in the leaf and then spread all over the plant when it grows older.
Control: Manually, the insect can be eliminated only by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This bug is found primarily in tropical and subtropical regions. The bug targets the leaf and draws all the nutrients of the leaf and gets curls at the idea. Later, the entire and die.
Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also attacks the leaf and makes the entire plant weak. The pest existence can be recognized when the leaf become yellowish, diminishes, reddens and drop. The pest can likewise be spread through fallen leaves.
Control: Some preventive steps 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 serious pest which assaults the plant throughout blossom duration so the crop yield completely drops. This bug is seen around the tropical area.
The poisonous enzyme in the plant diminishes the entire plant.
Control: Insecticides suggested for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The pests typically occurs attacks the plant in flowering season and this bug is seen commonly 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 ideas.
Control: Manually, the attacked seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
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Pests Of Jatropha
Bonny Beasley edited this page 2025-01-13 04:43:47 +01:00