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The giant swallowtail butterfly claims a wingspan of between 4 and 7 inches, with females possessing a slightly larger set of wings. This butterfly deposits larvae on the leaves of citrus trees; the larvae have a brown and yellow color and emit a strong, lemony odor when disturbed.
From droughts to unseasonable freezing, management of citrus trees is difficult enough without the unwelcome introduction of citrus-leaf-chomping caterpillar pests. From amateur garden enthusiasts to professional orchard owners alike, knowing the various qualities and eating habits of the critters helps confront, control or prevent a citrus caterpillar issue from taking place.
Whiteflies are very small moths related to a number of other sap-sucking pests such as scales, mealybugs and aphids. The delicate looking pests are about 1/10 to 1/16 inch long with four broad wings. Whiteflies feed on sap from the tender areas of the infested plants causing foliage to dry and discolor and overall plant growth to weaken. Pyrethrum is among the recommended pesticides for pest control.
Arizona leaf bugs, or leaf-footed bugs, belong to the order of Hemiptera -- true bugs with sucking mouthparts. Found across the south and as far west as Arizona, these insects of the family Coreidei take their name from the flattened appearance of the tibia of the rear legs, which resembles a leaf. Leaf-footed bugs take a toll on fruit and nut crops and also consume flowers such as roses and crepe myrtle.
Pyrethrin, the active ingredient of pyrethrum powder, kills insect pests. Pure pyrethrin disintegrates quickly after use, so that no lingering toxic residues remain to poison children if used in the home or ecologically beneficial animals if used out of doors. Pyrethrum powder has several natural sources, and attempts have been made to develop alternative sources.
Pyrethrum, extracted from chrysanthemum flowers, provides a natural way to control beg bugs. The botanical insecticide, which comes in both liquid and powder forms, is non-toxic to humans and other mammals.
Elderberries (Sambucus spp.) belong to the honeysuckle plant family and grow as trees or shrubs. The deciduous plants with dark green foliage bloom with white flower clusters during spring and summer, followed by red, blue or black berries. Elderberries are susceptible to beetle infestation.
Natural pyrethrum comes from the flowers of Chrysanthemum cinerariaefolium, also known as the pyrethrum daisy. The powder created by drying and crushing the flower heads has been used since the early 1800s to control insect pests.
A major international public health problem is vector-borne disease, including those caused by mosquitoes, such as encephalitis and West Nile virus, according to the Centers for Disease Control and Prevention. Throughout the world, pyrethrum is used to control mosquitoes.
Pyrethrum (Chrysanthemum cinerariaefolium or Chrysanthemum coccineum), which is harvested from the flowers of the chrysanthemum plant, is the most commonly used botanical insecticide in the United States, according to the Colorado State University Cooperative Extension.
Orange trees are native to Asia, but grow in subtropical climates in the United States. Leaf wilt or curl of orange foliage is a symptom of poor irrigation or a citrus leafminer infestation.
Bt is an abbreviation for the bacterial disease Bacillus thuringiensis. Bt is a live microorganism that occurs naturally in insects. A strain of Bt is used as the active ingredient in insecticides that are toxic to caterpillars such as leafrollers, alfalfa caterpillars, cabbage loopers, tomato hornworms and European corn borers.
The common mulberry, Morus alba, is a deciduous tree that grows between 20 and 60 feet tall. Many varieties are fruitless, but others produce small, sweet fruits. Mulberry trees are susceptible to a number of different problems.
Elderberry plants appear as shrubs or trees along riverbanks and in open riparian areas. They produce purplish black clusters of edible berries. Elderberries have few insect pests, and most are fairly easily controlled by pest predators and simple maintenance techniques used by growers.
Fennel is a food plant consumed by the caterpillars of the black swallowtail butterfly. Swallowtails are the largest species of butterfly in the Unites States and among the most beautiful.The black swallowtail is so widespread that it is sometimes known as the American swallowtail.
Several rose pests can be described as "green worms." They all inflict similar damage, whether it is defoliating bushes or eating new buds. Chemical control is rarely effective at controlling these pests. Whatever control you can offer with your own two hands by removing these larvae yourself may be the best method of control. Identifying the pest in question can lead you to the right solution, but don't hesitate to remove whatever you see before taking the time to identify them.
Orange trees provide a large crop in the United States. Damage from caterpillars can cause economic losses in the form of blemished fruit and the death of young trees.
Pyrethrum, one of the safest insecticides for food crops, occurs naturally in two varieties of chrysanthemums. The Persian chrysanthemum from the Caucasus region of the Middle East is the least potent. A variety from the Balkans--the Dalmatian chrysanthemum--produces the most pyrethrins, the active poison. Both types of flowers are common ornamentals. The dried and powdered flower heads can be used as a homegrown insecticide, but commercial preparations are more dependable.
Insecticide is a toxic substance that kills insects or eliminates disease-carrying pests. Insecticides are used to control pests that could infest plants and areas if they are not contained. Other than synthetic insecticides, there are also natural insecticides that naturally grow inside plants. To eliminate pests, insecticides are sprayed in their living areas or they are digested by the pest.
Commonly known as "flour" or "pantry moths," Indian meal moths can be extraordinarily troublesome pests. In a few short weeks or even days, they can wreak havoc on stored food. As with most outbreaks, an ounce of prevention can do wonders to prevent excess stress and aggravation.
