pt-sinergi-oleo-nusantara

Jatropha Curcas is gaining importance commercially as the need of nonrenewable fuel sources increases greatly 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 extremely economical compared to other fuels. Recently, Jatropha is facing some trouble with pests and illness. The insects are classified into two varieties: Pest that affect young plants and Pest that impact matured plants.

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

Agrotis ipsilon: It is frequently called Cut worm. This insect affects the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant totally.

Control: This bug can be managed by choosing 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 takes in the raw materials present in the soil and then pertains to the root. The larva attack might kill the entire plant.

Control: The plant with great resistance power can conquer the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be utilized to kill the insect.

Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The extreme infection might totally eliminate the plants.

Control: Insecticides are used to manage the pests.

Grasshopper: This is typical pest found in a number of plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The insect 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 insect harms the jatropha curcas stem and it is extensively seen in Indonesia. The stem assaulted by this insect usually fall down. The existence can be determined by the larva penetration hole at the stem.

Control: The Insecticide typically utilized to control this bug is carbofuran.

Pest of leaf: The common pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.

Leaf Caterpillar: This insect can consume all the leaves of the plant simply put duration. The quality and yield of the seeds get decreased due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when allowed to exposure to skin as it produces specific chemical substance. Initially the bug crowded in the leaf and after that spread out all over the plant when it gets older.

Control: Manually, the insect can be killed only by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.

Leaf Hopper: This insect is found mostly in tropical and subtropical areas. 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 die.

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

Mite: Mite likewise assaults the leaf and makes the entire plant weak. The insect existence can be recognized when the leaf ended up being yellow-colored, diminishes, reddens and fall down. The bug can also be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

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

The toxic enzyme in the plant diminishes the whole plant.

Control: Insecticides suggested for this pest 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 widely 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 ideas.

Control: Manually, the assaulted seeds are to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.