Jatropha Curcas is getting value commercially as the demand of fossil fuels increases enormously and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel substitute and it is likewise extremely affordable compared to other fuels. Recently, Jatropha is dealing with some problem with pests and illness. The insects are classified into two varieties: Pest that impact young plants and Pest that affect matured plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically known as Cut worm. This pest impacts the seedlings and young Jatropha 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 picking the larva found around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This bug ruins the root of the young plant. Initially, the larva takes in the raw materials present in the soil and after that pertains to the root. The larva attack may eliminate the entire plant.
Control: The plant with great resistance power can overcome the pest. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to eliminate the insect.
Army worm: Spodoptera litura existence can be identified by biting in the leaves. The extreme infection might completely eliminate the plants.
Control: Insecticides are utilized to manage the insects.
Grasshopper: This is typical pest found in a number of plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The bug frequently 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 bug damages the jatropha curcas stem and it is widely seen in Indonesia. The stem assaulted by this insect generally fall down. The presence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide normally used to control 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 consume all the leaves of the plant in short period. The quality and yield of the seeds get decreased due to the heavy attack.
Control: This can be managed by picking the old larvae around the surface area and tossing away the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when allowed to contact with skin as it produces certain chemical substance. Initially the pest crowded in the leaf and then spread out all over the plant when it grows older.
Control: Manually, the insect can be eliminated just by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This bug is found mainly in tropical and subtropical areas. The insect targets the leaf and draws all the nutrients of the leaf and gets curls at the suggestion. Later, the entire leaf dry and pass away.
Control: The heavy attack can be managed by using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise attacks the leaf and makes the entire plant weak. The insect existence can be determined when the leaf become yellowish, shrinks, reddens and fall down. The insect can also be spread out through fallen leaves.
Control: Some preventive can be simulated correct sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some awful bug which attacks flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a serious insect which attacks the plant throughout bloom period so the crop yield entirely drops. This pest is seen around the tropical area.
The poisonous enzyme in the plant diminishes the entire plant.
Control: Insecticides suggested for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The pests commonly happens attacks the plant in blooming season and this insect is seen widely 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 suggestions.
Control: Manually, the attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
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Pests Of Jatropha
Genia Mckenney edited this page 2025-01-11 20:11:01 +03:00