Jan van S. Graver

Education

B.Sc. (Botany, Entomology, and Zoology)

Experience

10 years with a commercial pest control business in Tanzania as Manager/Entomologist specifically supervising a contract to preserve and disinfest the national grain and commodity stocks. Also involved in other day-to-day domestic and commercial general pest control activities.
10 years in Papua New Guinea as storage entomologist concerned with imported and exported commodities.

Current position and activities

1984 to present with the Stored Grain Research Laboratory working on:

Storage and fumigation/disinfestation of bagged grains in sealed plastic enclosures with carbon dioxide, and phosphine
Industry liaison
Outdoor storage of bagged grain in sealed plastic enclosures
Computer assisted learning systems/techniques for grain storage

Contact Jan for

Practical aspects for fumigation in a wide range of situations including bagged and bulk grain, cinemas, freight containers, hospitals, houses, storage structures, and ships - using carbon disulphide, chloropicrin, controlled atmospheres, ethylene oxide, formaldehyde, hydrogen cyanide, methyl bromide, and phosphine.
Training, replacements for methyl bromide, and integrated commodity management.
Commodity treatment and storage issues for - cereal grains, 'coarse grains' (maize, millet, sorghum, etc), beverage commodities (cocoa, coffee, tea), copra and copra cake, dried fruit, flour, food nuts (cashews), legumes/pulses, oilseeds, (cotton seed, groundnuts, bambara nuts, soybeans, soybean grits and expeller, etc), spices (chillies, cardamom, etc.), and tobacco.
'Sweating' in containers, quarantine aspects of commodity storage.

Contact details