Sergio Contreras - Princesa de mi cuento (Lyric video) Rose Growing & Care / 'How To' Articles / Prune Roses / Heirloom Roses - Heir... How to Prune Roses Pruning is about more than just looks. Proper pruning improves the health of your rose bush, prevents disease, and encourages better flowering. There are different pruning strategies for different times of the year, but overall the goal is always the same: to keep the bush vigorous and open, allowing better air circulation through the center of the plant. Air movement dries the leaves, which helps prevent foliar diseases. Fungal diseases like black spot and powdery mildew are more common on plants with congested growth in the middle of the plant. General Pruning Guidelines Whether you are deadheading blooms during the summer or performing your annual spring cutback, it is important to consider how a rose grows. Pruning cuts should always be made just above a bud eye. Examples of Latent Bud or "Bud Eye" and Leaf Scar Examples of Bud Swell and Leaf Scar Roses Respond Well to Pruning What is interesting about roses is their willingness to break bud on old wood. Make the Cut
PutiPuerca - Guelo Star, Jamsha, Ñejo, de la Ghetto, Dalmata & Chino Nino ( Official Remix ) HD HGIC 2052 Boxwood Diseases & Insect Pests Pesticides updated by Joey Williamson, HGIC Horticulture Extension Agent, Clemson University, 09/15. Revised by Joey Williamson, HGIC Horticulture Extension Agent, Clemson University, 09/15. Originally prepared by Marjan Kluepfel, HGIC Horticulture Information Specialist; J. Printer Friendly Version (PDF) Boxwoods (Buxus spp.) are adapted to a wide range of light conditions, and prefer fertile, moist, well-drained soil, which is amended with organic matter. Diseases Decline: Boxwood decline is a poorly understood complex involving the fungi Paecilomyces, Volutella, Macrophoma and Phytophthora, as well as cold injury, drought stress, and nematodes (microscopic round worms). Root rots by Phytophthora are usually more of a problem in wet soils (see Root Rot section below). Symptoms consist of weak and spindly plants. Prevention & Treatment: A thorough diagnosis of the associated factors is important before corrective action is taken. Insects & Related Pests
Powdery Mildew on Vegetables Management Guidelines--UC IPM UC IPM Home > Homes, Gardens, Landscapes, and Turf > Powdery Mildew on Vegetables Powdery mildew on melon leaves. Sugar pea foliage damaged by powdery mildew, Erysiphe polygoni. Powdery mildew causes irregular yellow blotches on tomato leaves. Brownish spots on pea pod from powdery mildew infection. Powdery mildew is a common disease on many types of plants. Powdery mildew first appears as white, powdery spots that may form on both surfaces of leaves, on shoots, and sometimes on flowers and fruit. Leaves infected with powdery mildew may gradually turn completely yellow, die, and fall off, which may expose fruit to sunburn. All powdery mildew fungi require living plant tissue to grow. Most powdery mildew fungi grow as thin layers of mycelium (fungal tissue) on the surface of the affected plant part. Powdery mildew spores are carried by wind to new hosts. The best method of control is prevention. Resistant Varieties In some cases, varieties resistant to powdery mildew may be available. Oils
Spider Mites Management Guidelines--UC IPM UC IPM Home > Homes, Gardens, Landscapes, and Turf > Spider Mites Mites are common pests in landscapes and gardens that feed on many fruit trees, vines, berries, vegetables, and ornamental plants. Although related to insects, mites aren’t insects but members of the arachnid class along with spiders and ticks. Spider mites (Figure 1), also called webspinning mites, are the most common mite pests and among the most ubiquitous of all pests in the garden and on the farm. Webspinning spider mites include the Pacific spider mite, twospotted spider mite, strawberry spider mite, and several other species. Most common ones are closely related species in the Tetranychus genus and can’t be reliably distinguished in the field. To the naked eye, spider mites look like tiny, moving dots; however, you can see them easily with a 10X hand lens. Adult mites have eight legs and an oval body with two red eyespots near the head end. Mites cause damage by sucking cell contents from leaves. Monitoring
Control of Lace Bugs on Ornamental Plants | Publications Publications Download PDF Beverly Sparks S. Kristine Braman Shakunthala Nair Introduction Fig. 2. Fig. 1. Fig. 4. Fig. 3. Lace bugs are important pests of many ornamental trees and shrubs. Both adults and nymphs have piercing-sucking mouthparts and remove sap as they feed from the underside of the leaf. The most significant species of lace bugs that attack ornamental trees, shrubs and grasses are in the genera Stephanitis (azalea lace bug - Fig. 1 and andromeda lace bug - Fig. 2), Corythucha (hawthorn lace bug - Fig. 3 and sycamore lace bug) and Leptodictya (grass lace bug - Fig. 4) Description Adult lace bugs of Stephanitis and Corythucha spp. are flattened and rectangular in shape and 1/8 to 1/4 inch long. Fig. 5. Fig. 6. Fig. 7. Lace bug nymphs are flat and oval in shape with spines projecting from their bodies in all directions. Azalea lace bug eggs are football-shaped and are transparent to cream colored. Biology and Habits Damage Control Fig. 8.
Leaf Spot Diseases of Shade Trees and Ornamentals Leaf spot is a common descriptive term applied to a number of diseases affecting the foliage of ornamentals and shade trees. The majority of leaf spots are caused by fungi, but some are caused by bacteria. Some insects also cause damage that appears like a leaf spot disease. Leaf spots on trees are very common and generally do not require spraying. Symptoms and Diagnosis The chief symptom of a leaf spot disease is spots on foliage. Life Cycle The organisms that cause leaf spots survive in fallen infected leaves and twigs. Integrated Pest Management Strategies 1. 2. 3. 4. 5. 6. Organic Strategies Strategies 1, 2, 3, and 6 are strictly organic approaches. More images:
The Hypnotizing Beauty Of Russia’s Historic Metro Stations Underneath the streets of Moscow, there’s a whole other world of opulent architecture for visitors to discover: the Moscow Metro. David Burdeny, an architect-turned-photographer from Canada, believes that he was the first photographer ever to be allowed to shoot the stations after-hours, when they were closed to passengers. The Moscow Metro, which opened in 1935, was designed to be one big Soviet propaganda project. The opulent architectural designs were intended to forecast a bright future for the empire, as the guiding design principles were “svet” (light) and “sveltloe budushchee” (bright future). Many of the stations feature busts of Soviet leaders like Lenin or murals with standard Soviet propaganda elements like the Homo Sovieticus. Burdeny’s photo series, “Russia: A Bright Future,” will be on display at the Jennifer Kostuik gallery in Vancouver until Nov. 8th, so if you’re in the area, be sure to swing by! More info: davidburdeny.com (h/t: modernmetropolis)
Why can't we feel Earth's spin? Earth spins on its axis once in every 24-hour day. At Earth’s equator, the speed of Earth’s spin is about 1,000 miles per hour (1,600 kph). The day-night has carried you around in a grand circle under the stars every day of your life, and yet you don’t feel Earth spinning. Why not? It’s because you and everything else – including Earth’s oceans and atmosphere – are spinning along with the Earth at the same constant speed. Think about riding in a car or flying in a plane. Now think about what would happen if the car or plane wasn’t moving at a constant rate, but instead speeding up and slowing down. If you’re drinking coffee in a steadily moving car or airplane, no problem. Likewise, Earth is moving at a fixed rate, and we’re all moving along with it, and that’s why we don’t feel Earth’s spin. The constant spin of the Earth had our ancestors pretty confused about the true nature of the cosmos. Bottom line: Why don’t we feel Earth rotating, or spinning, on its axis?
Space elevator Proposed type of space transportation system A space elevator, also referred to as a space bridge, star ladder, and orbital lift, is a proposed type of planet-to-space transportation system,[1] often depicted in science fiction. The main component would be a cable (also called a tether) anchored to the surface and extending into space. An Earth-based space elevator cannot be constructed with a tall tower supported from below due to the immense weight—instead, it would consist of a cable with one end attached to the surface near the equator and the other end attached to a counterweight in space beyond geostationary orbit (35,786 km altitude). The concept is applicable to other planets and celestial bodies. History[edit] Early concepts[edit] The key concept of the space elevator appeared in 1895 when Russian scientist Konstantin Tsiolkovsky was inspired by the Eiffel Tower in Paris. 20th century[edit] Both the tower and cable ideas were proposed in David E. 21st century[edit] In fiction[edit]
Lawn Diseases: Prevention and Management Guidelines--UC IPM UC IPM Home > Homes, Gardens, Landscapes, and Turf > Lawn Diseases The disease triangle. All components must be present for disease to occur. Layout of a catch-can test, showing placement of catch cans (O) and sprinkler heads (X). Maintaining a healthy, vigorously growing lawn is the best way to prevent a severe disease outbreak in turfgrass. For a disease to occur, all three sides of the “disease triangle” must be present (Fig. 1). Many common diseases are active only under specific environmental conditions and will affect the lawn only for a short time. The cause of lawn damage is often difficult to identify, and diseases aren’t always the primary cause. Irrigation problems are the most common cause of discolored lawns. Almost all lawn diseases are the result of pathogenic fungi that infect the blades, stems, or roots of turfgrass plants. Table 1 lists and describes the most common diseases occurring in home lawns in California. Irrigation Turfgrasses vary in water requirements. Mowing
The History Place presents Abraham Lincoln Jump to: Lincoln becomes President - Emancipation Proclamation - Battle of Gettysburg - Kansas-Nebraska Act - Dred Scott Decision 1637 - Samuel Lincoln from Hingham, England, settles in Hingham, Massachusetts. 1778 - Thomas Lincoln (Abraham's father), descendant of Samuel, is born in Virginia. 1782 - Thomas and family move to Kentucky. 1786 - Thomas' father is killed by Native Americans. 1806 - Thomas marries Nancy Hanks. A daughter, Sarah, is born eight months later. 1808 - Thomas buys a farm called "Sinking Spring" near Hodgenville, Kentucky. February 12, 1809 - Abraham Lincoln is born in a one-room log cabin on Nolin Creek in Kentucky. 1811 - In spring, the Lincoln family moves to a 230-acre farm on Knob Creek ten miles from Sinking Spring. 1812 - A brother, Thomas, is born but dies in infancy. 1815 - Young Abraham attends a log school house. 1816 - Abraham briefly attends school.
Active Voice Versus Passive Voice Today's topic is active voice versus passive voice. Here's a question from Brian in Iowa. He writes, “It drives me crazy when people write in passive voice. How can I teach people how to tell the difference between passive and active voice and to stay away from passive voice?” Well, Brian is right, the first step is to help people understand the difference between active and passive voice, because many people believe they should avoid the passive voice, but fewer people can define it or recognize it. What Is Active Voice? I'll start with active voice because it's simpler. Another example is the title of the Marvin Gaye song “I Heard It through the Grapevine.” What Is Passive Voice? In passive voice, the target of the action gets promoted to the subject position. If you wanted to make the title of the Marvin Gaye song passive, you would say “It was heard by me through the grapevine,” not such a catchy title anymore. Next: Is "To Be" a Sign of Passive Voice? Is Passive Voice Always Wrong? 1.