The rice weevil (Sitophilus oryzae, S. zeeamais) infests maize, wheat, oats, barley and other grains. It may also infest other hard foodstuffs such as macaroni and spaghetti. Infestation usually occurs after harvesting, but on the north coast maize may be infested in the field. In summer, growers and storers of grain must take steps to prevent an infestation or control it.
The female weevil lays an average of 400 eggs. Eggs are laid singly in excavations made, usually, in the soft starch of the grain. On hatching, (3-4 days in warm, about 9 in cold weather), larvae usually bore to the centre of the grain, but occasionally tunnel near the surface. After about five days in the pupal stage, they become adults, and eat themselves out of the grain. This species can fly.
Development from egg to adult takes about four weeks; from then to laying eggs about one week in summer; in colder conditions, the life cycle may be considerably prolonged. There may be six or seven generations a year. |
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Seed Sowing and Germination -
The actual sowing is governed by the same rules as for outdoor , Rocks and Stones in a Japanese Garden sowing. Scatter flat seeds , Propagating Cactus by Cuttings - such as those of lilies, hippeastrum, and grevilleas-thinly and evenly over the soil , Spring Flowering Plants or other medium, and press each seed , Lawn Sprigs gently on one side with a pencil or point...
Garden Feng Shui -
Garden Feng Shui. , Growing Roses The design , Soil for Groundcovers of your garden , Marcottage: Propagating in the Air can have an amazing affect on your family's well being and health. Here is how you can create harmony in your garden , Growing Mangoes and Lychees from Stones - which is also a living entity - and bring peace and happine...
Marcottage: Propagating in the Air -
The introduction of plastic , Medicinal Tea - Catnip materials in the 1960's made marcottage worth while and it can be carried out by any gardener. Marcottage or air-layering is a method of propagation in which root , Creating a New Lawn formation is induced on parts of the plant , Propagating s by Cuttings which are above the g...
The Light Brown Apple Moth -
The light , Growing Citrus Trees from Pips brown apple moth (Epiphvas po,sivittana) has become a serious pest , Potted Roses of deciduous fruits , Interior Design - Talking Colour in many districts. All types of fruits , Feeding Roses may be attacked - apples, pears, peaches, plums, apricots, nectarinzs and grapes. Citrus fruits , Garden Design may also he damaged occ...
Clay Soil - How to Improve Clay Soil -
When working with clay soil, , Builders Insurance it is best to mix in with it some gypsum. Gypsum really helps to break up and unlock your clay dirt. Individual clay particles are actually negatively charged. What this means is that they have the capacity to attract and...
Astrological Gardening -
Astrological gardening. , Propagating by Budding For centuries men have been planting and harvesting using the signs of the zodiac which have allowed him to be in tune with the natural , Garden Tillers rhythms of nature. , Bush Roses ...
Repotting Bonsai -
Since a bonsai , Espalier remains in a container for life, soil , Push Lawn Sweepers becomes a very important matter; the potted tree , Growing Avocados from Stones cannot extend its roots , Caring For Orchids and find moisture , Grouping House Plants or food , Pruning Roses like a tree , Propagating Roses grown in the ground. The roots , Containers for Bonsai do continue to grow, , Push Lawn Sweepers but they eventually become potbound and...
Japanese Garden Maintenance -
Maintenance of a Japanese garden , Lawn Creation - Lawn Seed is largely a matter of housekeeping; it involves weeding, clearing away dead leaves, raking sand and gravel , Planning a Garden areas, and keeping paths , Planters for Houseplants and lakes clean. Pruning , Hedges - Growing a Hedge must be precise and frequent; trees , Lawn Creation - Lawn Seed and shrubs , Feeding House Plants must never be per...
Preparing your lawn - Levelling -
You can level an area fairly accurately by these means. You will need a straight edge and a carpenter's or bricklayer's spirit level. The straight edge could be a piece of 15 x 2.5 cm oregon or other, light , Hydroponic Systems - Aquaculture timber, dressed straight and parallel and about...
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