Jatropha Curcas is acquiring significance commercially as the need of nonrenewable fuel sources increases significantly and likewise jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel alternative and it is likewise extremely economical compared to other fuels. Recently, jatropha curcas is facing some difficulty with bugs and illness. The pests are classified into 2 varieties: Pest that impact young plants and Pest that impact grown plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically called Cut worm. This bug 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 shrunk the plant entirely.
Control: This insect can be controlled by choosing the larva found around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This insect damages the root of the young plant. Initially, the larva takes in the natural matters present in the soil and after that comes to the root. The larva attack may kill the whole plant.
Control: The plant with excellent resistance power can overcome the pest. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to kill the insect.
Army worm: Spodoptera litura existence can be determined by biting in the leaves. The severe infection might totally eliminate the plants.
Control: Insecticides are used to control the bugs.
Grasshopper: This prevails insect found in numerous plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The pest frequently attacks the young plant.
Control: The insecticides used 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 stem and it is commonly seen in Indonesia. The stem attacked by this insect usually fall down. The presence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide normally utilized to control 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 pest can eat all the leaves of the plant in brief period. The quality and yield of the seeds get decreased due to the heavy attack.
Control: This can be managed by picking the old larvae around the surface area and getting rid of the assaulted 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 gets older.
Control: Manually, the bug can be killed only 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 insect 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 entire plant weak. The insect existence can be determined when the leaf ended up being yellowish, shrinks, and drop. The pest can likewise be spread out through fallen leaves.
Control: Some preventive procedures can be simulated appropriate sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.
Some awful pest which attacks flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a serious bug which attacks the plant throughout blossom duration so the crop yield completely drops. This bug is seen around the tropical region.
The poisonous enzyme in the plant shrinks the whole plant.
Control: Insecticides advised for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs commonly takes place attacks the plant in flowering season and this pest is seen extensively in tropical areas. The female pest 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 flowering season.
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Pests Of Jatropha
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