Pests Of Jatropha
Jatropha Curcas is getting importance commercially as the demand of fossil fuels increases significantly and also jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel alternative and it is likewise extremely economical compared to other fuels. Recently, jatropha curcas is dealing with some problem with pests and illness. The bugs are categorized into 2 ranges: Pest that affect young plants and Pest that affect matured plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically referred to as Cut worm. This insect impacts the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant completely.
Control: This pest can be controlled by selecting the larva discovered around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This pest ruins the root of the young plant. Initially, the larva consumes the natural matters present in the soil and after that pertains to the root. The larva attack may kill the whole plant.
Control: The plant with excellent resistance power can get rid of the insect. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to eliminate the insect.
Army worm: Spodoptera litura presence can be determined by biting in the leaves. The extreme infection could totally eliminate the plants.
Control: Insecticides are utilized to control the pests.
Grasshopper: This prevails pest discovered in several plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The bug often assaults 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 insect harms the jatropha curcas stem and it is widely seen in Indonesia. The stem assaulted by this pest usually drop. The existence can be identified by the larva penetration hole at the stem.
Control: The Insecticide generally utilized to manage this pest is carbofuran.
Pest of leaf: The typical bugs 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 picking the old larvae around the surface and throwing away the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when permitted to exposure to skin as it produces certain chemical compound. Initially the bug crowded in the leaf and after that spread out all over the plant when it ages.
Control: Manually, the insect can be killed only by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.
Leaf Hopper: This insect is discovered primarily in tropical and subtropical areas. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the pointer. 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 likewise attacks the leaf and makes the entire plant weak. The bug presence can be determined when the leaf ended up being yellow-colored, shrinks, turns red and fall down. The insect can likewise be spread out through fallen leaves.
Control: Some preventive procedures can be done like proper sanitation and burning the fallen leaves. Heavy attack can be treated by .
Some terrible insect 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 blossom duration so the crop yield completely falls down. This pest is seen around the tropical region.
The harmful 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 insects frequently happens attacks the plant in blooming season and this insect is seen widely in tropical areas. 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 attacked seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.