Garden Services.com
Information on Garden Pests
 
Menu
Home Clipart Gallery Gardening Resources Gardening Books
Sections
Garden Notes Garden Design Annuals and Perennials Flowers Fruits Houseplants Glossary of Terms Lawns and Groundcovers Pests Soils and Fertilizers Trees and Shrubs Vegetables
Garden Pests
Algae Animal--Repellents Ants Aphids - Spraying Borers Bacillus Thuringiensis Bagworms Birch Borers Vinca Blight Copper Deficiency Crab Grass Cucumber Beatles Cutworms Crown Gall Cucumber Beatles Cutworms Dog Injury Dormant Oil Dried Blood Eastern Tent Caterpillar English Ivy & Brickwork Euonymus Scale Fall Webworms Flickers Galls Grubs Gypsy Moths Hollow Trees Houseplant Insects Japanese Beetles Iron Chlorosis Locusts Mealy Bugs Mistletoe Moss Moth Balls Mouse Control Onion Maggots Peach Borers Peaches: Winter Injury Phosphorus Deficiency Plant Lice (Aphids) Rubbing Alcohol Rabbit Deterrents Rabbit Traps Snails Squash Borers Squash Bugs Salt Injury Salt Injury: Tolerant Plants Sapsuckers: Yellow Bellied Scales Slugs--Control Sod Webworms Soil Sterilizing Sphagnum Moss--Disease Spider Mites Squirrels Sunflowers--Preventing Birds Sweet Gum Balls--Removal Tent Caterpillars Termites Walnut Toxicity Weed Burners Woodpeckers - Downy Worms in Potplants
Store
Books on Soil Gardening Videos Garden Tools Home & Garden Store
Garden Services

Spraying Aphids

Spraying to kill plant lice with a caustic, tobacco, pyrethrum or an oil emulsion (as directed by the manufacturer) early in the day will give best results. 

The reason is that the solution will naturally become stronger with the evaporation of its water; whereas the same solution applied in the evening will tend to become weaker because of its dilution with dew. For the same reason the morning application dries up and sticks to the leaves and at night the dew liquefies it again, but the evening application not only becomes more dilute but it may drop off and be lost. 

Applications of contact sprays should also be made early in the season to control aphids before the leaves begin to curl in order to kill or knock off every plant louse. Tobacco in all commercial insecticidal  forms seems to be an excellent repellent as long as its fumes may be detected by plant lice. Hence the advisability of making applications as early in the season as the first louse can be discovered; also of thoroughly covering the under side of every leaf with the solution. In that location it will stick longer than on the upper side as it is there more protected from washing by rain and dew. 

Copyright Information: Gardening Short Cuts

See Also: Garden Pests

Garden-Services.com © 2000-2012 - Site by Dropbears