WebChat
We have 43 guests online
Farmer Forum
Program Unit
Other Program
Information
Map
Cooperation
Campaign Media
Download the large size
General Articles
Seed Bank
Field School
Copy-Paste
Link Website
Film Dokumentation
Polls
Link Lesman
Guest Online
We have 43 guests onlineVisitor Data
DATA PENGUNJUNG
Mulai Oktober 2008
 | Hari ini | 244 |
 | Kemarin | 1956 |
 | Minggu ini | 3928 |
 | Bulan ini | 37453 |
 | Semua | 886737 |
___________
Cari Pestisida Organik
Custom Search
| Pest and Disease Control with Organic Pesticides |
|
Negative Impacts of Pesticide Use of Chemicals Farmers have been dependent on the use of chemical pesticides to control pests and plant diseases. In addition to the expensive, chemical pesticides have many negative impacts on the environment and human health. Negative impact of the use of chemical pesticides include: 1. Pests become immune (resistant) 2. Explosion of new pests (resurjensi) 3. Accumulation of chemical residues in crops 4. Killing natural enemies 5. Environmental pollution by chemical residue 6. Accidents for users I wonder how long the farmers use chemical pesticides? So you can imagine yourself as a result of agricultural land in Indonesia.Function of Organic Pesticides Organic pesticides have several functions, among others: 1. Repelan, which rejected the presence of insects. For example: the smell that stung 2. Antifidan, prevent insect eating plants that have been sprayed. 3. Damaging development egg, larva, and pupa 4. Inhibit insect reproductive females 5. Nerve poison 6. Disrupt the hormone system in the body of insects 7. Atraktan, the presence of insect decoy that can be used to trap insects 8. Controlling the growth of fungus / bacteria Materials and Processing General How Organic Pesticides * Raw materials-shaped flour (nimbi, turmeric, etc.) * Extracts of plants / resins by taking liquid secondary metabolites of certain plant parts * The plants were burned to ashes taken and used as insecticide (citronella, tembelekan / Lantana camara) Examples of some plants that can be used as an organic pesticide: Mimba (Azadirachta indica) Organic Pesticides This material contains an active compound azadirachtin, meliantriol, and salanin. The shape of the leaf powder or liquid oil from the seed / fruit. Effective in preventing eating (antifeedant) for insects and plants to prevent insect approaching (Repellent) and systemic. Mimba can create sterile insects, because it can interfere with hormone production and growth of insects. Mimba has a broad spectrum, effective to control soft-bodied insects (200 species) between lainL grasshoppers, thrips, caterpillars, white butterfly, etc.. Besides it can also to control fungi (fungicide) on the preventive stage, causing fungal spores failed to germinate. Mushrooms are controlled, among others causes: moisture flour, rotten disease, smallpox leaves / scab, leaf rust and leaf spots. And prevent the bacteria in the dew flour (powdery mildew). Extracts mimba should be sprayed at the early stages of insect development, dun sprayed on, poured on the roots to be absorbed by plants and to control insects in the soil.ROOTS Tuba (rustle eliptica) Compounds that were found include retenon. Retenon could be extracted using ether / acetone to 2 - 4% resin rotenone, made into a concentrate water. Rotenon works as a cell toxin is very strong (insecticide) and as a result the insect antifeedant stop eating. Insect's death occurred several hours to several days after the famous rotenone. Rotenon can be mixed with piretrin / sulfur. Rotenon is poison contacts (not systemic) wide and as berpspektrum stomach poison. Rotenon can be used as moluskisida (for molluscs), insecticides (for insects) and akarisida (mites). TOBACCO Organic Pesticides tobacco because they contain compounds is nicotine. It turned out that nicotine is not only toxic to humans, but also can be used to poison insects dried tobacco leaves containing 2 - 8% of nicotine. Nicotine is a nerve poison that reacts quickly. Nicotine acts as a contact poison for insects such as caterpillars destroyer leaves, aphids, triphs, and controlling fungi (fungicides). 
|
