PT Sinergi Oleo Nusantara

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  • Founded Date February 16, 1969
  • Sectors Beauty services
  • Posted Jobs 0
  • Viewed 10

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Pests Of Jatropha

Jatropha Curcas is getting value commercially as the demand of fossil fuels increases tremendously and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel substitute and it is also extremely affordable compared to other fuels. Recently, Jatropha is facing some problem with pests and illness. The insects are categorized into two ranges: Pest that affect young plants and Pest that affect grown plants.

Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.

Agrotis ipsilon: It is frequently referred to as Cut worm. This insect affects the seedlings and young Jatropha 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 entirely.

Control: This insect can be managed by selecting the larva discovered around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This pest destroys the root of the young plant. Initially, the larva takes in the natural matters present in the soil and then concerns the root. The larva attack might eliminate the entire plant.

Control: The plant with excellent resistance power can get rid of the insect. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to kill the bug.

Army worm: Spodoptera litura presence can be identified by biting in the leaves. The serious infection might totally eliminate the plants.

Control: Insecticides are utilized to control the bugs.

Grasshopper: This prevails insect discovered in a number of plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The bug often attacks 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 stem and it is widely seen in Indonesia. The stem attacked by this bug usually fall down. The presence can be identified by the larva penetration hole at the stem.

Control: The Insecticide usually used to control this pest is carbofuran.

Pest of leaf: The common pests 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 duration. The quality and yield of the seeds get reduced due to the heavy attack.

Control: This can be controlled by selecting the old larvae around the surface area and tossing away the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when allowed to contact with skin as it produces specific chemical compound. Initially the bug crowded in the leaf and then spread all over the plant when it ages.

Control: Manually, the pest 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 mostly 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 entire leaf dry and die.

Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta or carbosulfan.

Mite: Mite likewise assaults the leaf and makes the whole plant weak. The bug presence can be identified when the leaf become yellow-colored, shrinks, reddens and fall down. The bug can likewise be spread out through fallen leaves.

Control: Some preventive steps can be done like appropriate sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.

Some dreadful bug which attacks flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a major bug which assaults the plant during blossom duration so the crop yield entirely drops. This insect is seen around the tropical region.

The harmful enzyme in the plant shrinks the whole plant.

Control: Insecticides recommended for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.

Tip borer caterpillar: The pests typically happens attacks the plant in flowering season and this bug 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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