is gaining importance commercially as the demand of nonrenewable fuel sources increases enormously and likewise jatropha curcas is an environmentally friendly energy plantation. Plantation of this plant is considered to be an excellent fuel alternative and it is likewise very affordable compared to other fuels. Recently, jatropha curcas is facing some trouble with pests and diseases. The pests are classified into two 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 referred to as Cut worm. This pest affects the seedlings and young Jatropha plants. If the plant is affected 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 pest damages the root of the young plant. Initially, the larva takes in the raw materials present in the soil and after that concerns the root. The larva attack may eliminate the entire plant.
Control: The plant with excellent resistance power can conquer the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to eliminate the bug.
Army worm: Spodoptera litura existence can be determined by biting in the leaves. The serious infection could completely kill the plants.
Control: Insecticides are used to control the insects.
Grasshopper: This prevails insect found in numerous plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The pest often 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 insect harms the Jatropha stem and it is extensively seen in Indonesia. The stem attacked by this pest normally fall down. The existence can be identified by the larva penetration hole at the stem.
Control: The Insecticide normally utilized to manage this insect 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 simply put period. The quality and yield of the seeds get lowered due to the heavy attack.
Control: This can be managed by choosing the old larvae around the surface and tossing away the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when enabled 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 eliminated just by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This insect is discovered mostly in tropical and subtropical areas. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the pointer. 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 entire plant weak. The pest existence can be determined when the leaf become yellow-colored, diminishes, turns red and drop. The insect can likewise be spread out through fallen leaves.
Control: Some preventive measures can be simulated correct 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 insect which assaults the plant throughout bloom period so the crop yield entirely falls down. This insect is seen around the tropical region.
The toxic enzyme in the plant shrinks the whole plant.
Control: Insecticides advised for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The pests frequently happens attacks the plant in flowering season and this insect is seen extensively in tropical regions. The female insect laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant ideas.
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
Grady Hazel edited this page 7 days ago