Jatropha Curcas is gaining 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 outstanding fuel replacement and it is likewise very economical compared to other fuels. Recently, Jatropha is dealing with some problem with bugs and diseases. The pests are categorized into two varieties: Pest that impact young plants and Pest that impact matured plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is commonly known as Cut worm. This pest impacts 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 diminished the plant entirely.
Control: This pest can be managed by picking the larva discovered around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This insect ruins the root of the young plant. Initially, the larva consumes the organic matters present in the soil and then comes to the root. The larva attack may eliminate the entire plant.
Control: The plant with great resistance power can overcome the pest. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to kill the insect.
Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The serious infection might completely kill the plants.
Control: Insecticides are used to manage the bugs.
Grasshopper: This is typical bug found in numerous plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The pest often assaults the young plant.
Control: The insecticides utilized betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.
Pest observed in fully grown plants:
Pest of Stem: Ostrinia furnacalis, Xyleborus spp.
Ostrinia furnacalis and Xyleborus: This pest damages the jatropha curcas stem and it is widely seen in Indonesia. The stem assaulted by this pest normally fall down. The existence can be identified by the larva penetration hole at the stem.
Control: The Insecticide generally used to control this insect is carbofuran.
Pest of leaf: The typical bugs observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn .
Leaf Caterpillar: This pest can eat all the leaves of the plant simply put period. The quality and yield of the seeds get decreased due to the heavy attack.
Control: This can be controlled by picking the old larvae around the surface area and discarding 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 certain 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 controlled by spraying organophosphate insecticides.
Leaf Hopper: This bug is found mainly in tropical and subtropical regions. The bug targets the leaf and draws all the nutrients of the leaf and gets curls at the suggestion. 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 also attacks the leaf and makes the whole plant weak. The bug presence can be identified when the leaf become yellow-colored, diminishes, reddens and fall down. The insect can also be spread out through fallen leaves.
Control: Some preventive measures can be done like correct sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.
Some terrible pest which attacks flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a severe pest which assaults the plant during blossom duration so the crop yield entirely falls down. This insect is seen around the tropical region.
The hazardous enzyme in the plant shrinks the entire plant.
Control: Insecticides suggested for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The pests commonly takes place attacks the plant in flowering season and this pest is seen commonly 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 pointers.
Control: Manually, the attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
Lucas Hope edited this page 5 months ago