Pests Of Jatropha
Jatropha Curcas is getting significance commercially as the demand of fossil fuels increases significantly and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel substitute and it is likewise compared to other fuels. Recently, jatropha curcas is dealing with some difficulty with bugs and diseases. The insects are classified into 2 ranges: Pest that affect young plants and Pest that impact matured plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is commonly called Cut worm. This pest affects the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will diminished the plant completely.
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 damages the root of the young plant. Initially, the larva takes in the organic matters present in the soil and after that concerns the root. The larva attack might kill the whole plant.
Control: The plant with good resistance power can get rid of the pest. For heavy attack, insecticides with parts carbosulfan and carbofuran can be utilized to kill the bug.
Army worm: Spodoptera litura presence can be determined by biting in the leaves. The serious infection might completely kill the plants.
Control: Insecticides are used to control the bugs.
Grasshopper: This is common insect found in a number of plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The insect 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 damages the jatropha curcas stem and it is widely seen in Indonesia. The stem attacked by this insect usually fall down. The existence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide generally used to control this insect is carbofuran.
Pest of leaf: The typical 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 short period. The quality and yield of the seeds get lowered due to the heavy attack.
Control: This can be controlled by picking the old larvae around the surface area and getting rid of the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when enabled to call with skin as it produces specific chemical substance. Initially the bug crowded in the leaf and after that spread all over the plant when it ages.
Control: Manually, the bug can be eliminated just by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.
Leaf Hopper: This bug is found primarily in tropical and subtropical regions. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the idea. Later, the entire leaf dry and pass away.
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 existence can be identified when the leaf become yellow-colored, shrinks, reddens and fall down. The bug can likewise be spread through fallen leaves.
Control: Some preventive steps can be simulated appropriate sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.
Some terrible bug which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a serious insect which assaults the plant throughout bloom period so the crop yield completely drops. This bug is seen around the tropical region.
The hazardous enzyme in the plant shrinks the whole plant.
Control: Insecticides suggested for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The insects commonly occurs attacks the plant in flowering season and this bug is seen commonly 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 suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.