Jatropha Curcas is acquiring significance commercially as the need of fossil fuels increases significantly and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel replacement and it is also really affordable compared to other fuels. Recently, jatropha curcas is dealing with some problem with bugs and diseases. The bugs are categorized into 2 varieties: Pest that impact young plants and Pest that affect developed plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently called Cut worm. This insect impacts the seedlings and young jatropha curcas plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant entirely.
Control: This insect can be managed by picking the larva discovered 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 consumes the raw materials present in the soil and after that comes to the root. The larva attack may kill the whole plant.
Control: The plant with good resistance power can get rid of the bug. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to kill the insect.
Army worm: Spodoptera litura presence can be determined by biting in the leaves. The serious infection could totally kill the plants.
Control: Insecticides are utilized to manage the bugs.
Grasshopper: This prevails pest found in numerous plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The pest 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 pest harms the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this pest normally fall down. The existence can be determined by the larva penetration hole at the stem.
Control: The Insecticide normally used to control this insect is carbofuran.
Pest of leaf: The typical bugs observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This bug can all the leaves of the plant in other words duration. The quality and yield of the seeds get minimized due to the heavy attack.
Control: This can be controlled by choosing the old larvae around the surface and throwing away the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when enabled to contact with skin as it produces certain chemical compound. Initially the bug crowded in the leaf and then 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 managed by spraying organophosphate insecticides.
Leaf Hopper: This bug is discovered mostly in tropical and subtropical regions. The pest 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 using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise assaults the leaf and makes the entire plant weak. The pest existence can be recognized when the leaf become yellowish, diminishes, reddens and fall down. The insect can likewise be spread through fallen leaves.
Control: Some preventive procedures can be simulated correct 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 insect 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 pests frequently 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 suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
Cameron Ricketts edited this page 2 weeks ago