Jatropha jatropha curcas is gaining importance commercially as the demand of fossil fuels increases greatly and also jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel substitute and it is likewise very economical compared to other fuels. Recently, jatropha curcas is facing some difficulty with pests and illness. The bugs are categorized into 2 ranges: Pest that impact young plants and Pest that affect matured plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently understood as Cut worm. This bug affects the seedlings and young . If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant completely.
Control: This insect can be managed by picking the larva discovered around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This bug destroys the root of the young plant. Initially, the larva consumes the natural matters present in the soil and then comes to the root. The larva attack might kill the entire plant.
Control: The plant with good resistance power can get rid of the insect. For heavy attack, insecticides with elements carbosulfan and carbofuran can be utilized to eliminate the insect.
Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The severe infection could totally kill the plants.
Control: Insecticides are utilized to manage the insects.
Grasshopper: This prevails bug discovered in numerous plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The bug typically assaults 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 bug typically fall down. The presence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide generally used to manage this pest is carbofuran.
Pest of leaf: The common 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 in short duration. The quality and yield of the seeds get lowered due to the heavy attack.
Control: This can be managed by picking the old larvae around the surface area and tossing away the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when allowed to call with skin as it produces particular chemical substance. Initially the bug crowded in the leaf and then spread out all over the plant when it ages.
Control: Manually, the pest can be eliminated just by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.
Leaf Hopper: This insect is found primarily in tropical and subtropical areas. The pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the entire leaf dry and pass away.
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 whole plant weak. The pest existence can be determined when the leaf ended up being yellowish, shrinks, turns red and drop. The insect can likewise be spread through fallen leaves.
Control: Some preventive measures can be done like proper sanitation and burning the fallen leaves. Heavy attack can be dealt with 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 severe bug which assaults the plant during bloom period so the crop yield totally drops. This insect is seen around the tropical area.
The harmful 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 bugs commonly happens attacks the plant in blooming season and this pest is seen commonly 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 pointers.
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
Millard Burroughs edited this page 12 hours ago