Pumpkins Squashes and Gourds !!!! Cucurbita (Latin for gourd) is a genus of herbaceous vines native to the Andes and Mesoamerica. They are grown worldwide for their edible fruit and seeds. We grow many of these in our customers rooftop gardens! The five domesticated species are Cucurbita argyrosperma, C. ficifolia, C. maxima, C. […]
CELLS
Plant vs Animal cells Plants, like animals, have eukaryotic cells – meaning they possess a defined nucleus and membrane-bound organelles. Although they share many common features, they have 2 main differences. First, plant cells have a cell wall that surrounds the cell membrane – animal cells do not. This allows them to form an […]
Hardiness
Salt and Ice When you add salt to ice it melts. Why? The melting occurs because the salt molecules sneak in between the water molecules and this increases the distance between the water molecules. By making them farther apart than it would at that temperature they now behave as a liquid. Sugar has a […]
ANTHRACNOSE DISEASE
ANTHRACNOSE This is a fungus that infects a wide variety of ornamental trees and shrubs. Commonly affected plants include Japanese maple, dogwood (both shrubs and trees), oak, oak leaf hydrangea, Boston ivy, willow, and sycamore. Ornamental pink willow is very susceptible It is also a very common disease of commercially grown fruit […]
OH NO ! STINK BUGS !!!!
THE ADULTS Common brown stink bug This crop pest of China was introduced into Pennsylvania by accident in 1998, and has spread throughout the Northeast. The name “stink bug” refers to glands on the abdomen. When disturbed or if crushed the insect will release a potent and unpleasant odor – like potent skunk […]
ESSENTIAL OILS
Use in Aromatherapy Essential oils are often used in massaging and aromatherapy. This is a form of alternative medicine that employs plant extracts to support health and well-being. They are not meant to be eaten or swallowed. Essential oils These oils are compounds extracted from plants. The oils capture the plant’s scent […]
CEDAR APPLE RUST
WHAT IS THAT ! Fungal blisters on apple leaf As the summer progresses into fall gardeners start noticing these blisters on their apple tree leaves. It’s a fungus !!! This disease is one of several caused by the genus Gymnosporangium. Its called Cedar Apple Rust. Life cycle on broadleaf plants The […]
BUD WORMS – YUCK !
The Tobacco Budworm This is a familiar garden pest we encounter every season. It is a caterpillar that loves many of our favorite plants. It is also an agricultural pest of both tobacco and cotton. In our gardens it feeds on the flowers of geranium, petunia, snapdragon and nicotiana – sometimes even […]
MODERN FLOWERING PLANTS
FLOWERING PLANTS Although still very old ( as in 125 million years ! ) flowering plants are considered “modern”. This is because they produce a seed inside a vessel. Unlike their ancestors, they also produce a flower containing both male and female reproductive structures. Flowering plants evolved into two main groups. Monocotyledons and dicotyledons. […]
