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PDPs - preparation & use (056) Print Fact Sheet

Common Name

General instructions

Preparing Natural Pesticides

Chilli: active against ants, aphids, caterpillars, mealybugs

Soursop or Custard Apple: active against aphids, caterpillars (diamond back moth), planthoppers, grasshoppers


Neem: active against caterpillars, grasshoppers, and many more; also fungi and nematodes

For leaves:

For mature seeds:

Tobacco: active against caterpillars, aphids, and more

Garlic: active against caterpillars, mites, thrips, and possibly some fungal diseases

Gliricidia: active against aphids, caterpillars, whitefly

Note: Gliricidia is also a rat poison. Mix the amounts above with boiled rice. But may need to make up fresh ever day. Place the "food" in a bamboo to protect it from children, pets and domestic animals. Bacterial action converts chemicals in the leaves to brodifacoum-like substances.

Derris: active against caterpillars, grasshoppers, aphids, spider mites, plant hoppers; beetles

Marigold: active against insects and is a repellent (planted for control of nematodes)

Papaya: active against thrips

Soap: active against scale insects, mealybugs and aphids

Ash: active against grasshoppers and beetles

Hot water: active against ants, nematodes in yams and sterilise nursery soil

White Oil: active against powdery mildew fungi and also many sucking insects, especially scales, aphids

Milk: active against powdery mildew fungi

AUTHOR Grahame Jackson 
Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community. 

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