Pests Of Jatropha
Jatropha Curcas is getting value commercially as the need of nonrenewable fuel sources increases enormously and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel substitute and it is likewise very cost-effective compared to other fuels. Recently, jatropha curcas is facing some trouble with pests and illness. The pests are classified into 2 varieties: Pest that affect young plants and Pest that affect matured plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently called Cut worm. This bug affects the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface area and this will diminished the plant totally.
Control: This pest can be managed by selecting the larva found 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 natural matters present in the soil and then concerns the root. The larva attack may eliminate the entire plant.
Control: The plant with good resistance power can get rid of the bug. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the bug.
Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The severe infection could entirely kill the plants.
Control: Insecticides are used to manage the insects.
Grasshopper: This is common bug discovered in numerous plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The bug typically attacks the young plant.
Control: The insecticides used betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.
Pest observed in mature plants:
Pest of Stem: Ostrinia furnacalis, Xyleborus spp.
Ostrinia furnacalis and Xyleborus: This pest harms the jatropha curcas stem and it is commonly seen in Indonesia. The stem attacked by this insect normally fall down. The existence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide normally utilized to control 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 eat 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 selecting the old larvae around the surface and getting rid of the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when permitted to exposure to skin as it produces particular chemical compound. Initially the insect crowded in the leaf and after that spread out all over the plant when it grows older.
Control: Manually, the insect can be killed only by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This insect is found primarily in tropical and subtropical regions. The pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the idea. Later, the entire leaf dry and die.
Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also assaults the leaf and makes the entire plant weak. The pest presence can be identified when the leaf ended up being yellow-colored, shrinks, turns red and drop. The insect can likewise be spread out through fallen leaves.
Control: Some preventive measures can be done like appropriate sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some awful pest which assaults 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 throughout blossom period so the crop yield completely falls down. This bug 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 bugs typically occurs attacks the plant in flowering season and this bug is seen extensively in tropical regions. The female bug laid the eggs on the tender part of the plant and the young the young fruits and plant suggestions.
Control: Manually, the assaulted seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.