The Yellow Starthistle Plant Essay

1015 words - 5 pages

“Yellow Starthistle is considered one of the most serious rangeland, grassland, and wildland weeds in the northwestern United States” (DiTomaso). Yellow Starthistle spreads very quickly and grows in any climate which is why it is very hard to manage. This weed is very common in California. Yellow Starthistle has many negative effects on animals, other plant lives, and water consumption.
Yellow Starthistle affects animal life. Although many other animals can graze this plant, Yellow Starthistle is very poisonous to horses. If the weed is ingested by horses, they will develop Nigropallidal Encephalomalacia which I s also known as chewing disease. It causes the horse to completely lose its ability to swallow. The toxins from yellow starthistle affects the brain and causes softening of the tissues. “The symptoms of yellow starthistle poisoning include inability to swallow, drowsiness, inability to eat and drink, making chewing motions with nothing in the mouth, frequent yawning, unusual behavior, including standing in unusual positions, acting as though something is caught in his throat, and chewing food and spitting it out” (Zelenko). “In northern California in 1954, it was estimated that at least 100 cases of horse poisoning by yellow starthistle occurred annually” (DiTamaso). Yellow Starthistle isn’t poisonous to all animals. Animals such as goats, cattle, sheep, mules, and burros help manage yellow starthistle by grazing. Although it is not poisonous, the weed can affect the animals due to its long, pointy thorns going into their eyes.
Yellow Starthistle also has an effect on nature. “Yellow Starthistle infestations may reduce wild life habitat and forage, displace native plants, and decrease native plant and animal diversity” (Sheley and Larson). “Yellow Starthistle depletes soil moisture and alters water cycles. Based on a conservative estimate of starthistle coverage, Gerlach (2004) estimated that yellow starthistle may cause an annual economic loss of $16 to $75 million in water conservation costs alone” (DiTomaso). 15 billion gallons of water is lost from the Sacramento River watershed each year due to yellow starthistle. “Excessive water use by yellow starthistle could decrease water levels in streams and lakes, reducing water ability for recreational activities” (DiTomaso).
As Centaurea Solstitalis, also known as yellow starthistle, takes over California, already covering more than 14 million acres, many people are trying to slow and hopefully stop the spread of this invasive plant (Gendron, Pitcairn, Schoenig, and Yacoub) .
The California Department of Food and Agriculture is an extremely significant organization that is very dedicated to stopping the yellow starthistle from spreading (Strategic Plan). They are an organization that also focuses on the impact that other invasive species have on the community. They believe that invasive plants, like yellow starthistle, take a location’s resources from the native plants, can harm...

Find Another Essay On The Yellow Starthistle Plant

Bioassays in Relation to the Growth and Colouration of Tomato Seedlings

2275 words - 9 pages chemicals and the concentrations that benefited the plant the most to give an idea of which chemical benefits plants the most. Dark blue represents the Control (watered with distilled water), pink represents 5% Cu solution, Yellow represents 0.1% Mn solution and light blue represents 0.5% K solution. The results from the Extended Experimental Investigation show that plants watered with copper had grown the best, despite that they had (by assumption

Monarch Butterflies Coevolution With Milkweed Essay

573 words - 2 pages monarch lays its egg on the leaf of the plant. Once the Caterpillar is born it eats the leaf for nutrition. The Monarch caterpillar is striped black and yellow. As it grows and becomes ready to become a chrysalis by forming a cocoon it uses the plant again. The caterpillar forms its cocoon on the Butterfly Weed. By the time the caterpillar is ready to become a chrysalis it has grown to be about 45 millimeters in length. The chrysalis is pale green

Biology Reports

1324 words - 5 pages 1. Given the following parental genotypes, show all possible gametes that each could form. Circle each gamete. Note: different gamete types are separated by commas in the table below.Genotype Gametes: AA A Aa A, a Bb B, b bb b cc c AABB AB AAbb Ab Aabb Ab, ab AaBb AB, Ab, aB, ab AaBbCc ABC, ABc, Abc, AbC, aBc, aBC, abC, abc 2. In summer squash, white fruit color (W) is dominant over yellow (w). If a squash plant homozygous for white is crossed

“Yellow Rain” Conspiracy Theory or Fiction?

915 words - 4 pages Yellow Rain, a mystery in itself for the last 30 years. Depending on which government you were talking to it is either a conspiracy theory/hoax or a fictional substance. The Vietnamese believe this to be a real issue, however after testing this substance that fell from the sky in 1975 as a yellow sticky substance hence yellow rain it came back negative several times as being any sort of believed T2 Mycotoxin. Mycotoxin (tricholthecene) is

Testing the Strength of Plant Fibers

2809 words - 11 pages orange pigment abundant in them. The main nutrients of pumpkin are both alpha and beta carotene. Beta carotene generates vitamin A in the body. The plant grows in vines that spread low across the ground, with large leaves and yellow-orange flowers. Plant fibres Plant fibres consist of vascular tissues and the sclerenchyma fibres. Mature sclerenchyma cells are dead cells that have walls heavily thickened with lignin. There are two main types of

Light and Photosynthesis

1412 words - 6 pages solution to cover the leaf. • Record the results. Test to show if light is necessary for photosynthesis. Apparatus: • Plant(destarched) • Black paper/ aluminium foil • Paper clips • Beaker with water Destarching a Plant 1. Place plant and beaker in a dark cupboard for 48 hours. 2. Follow by starch test(pg 5) to see if it is destarched, leaf will stay yellow/brown. Method: • Remove destarched from cupboard. • Do starch test to check it is

Monkshood (an endangered plant). It's common names, description and the plant's disease

964 words - 4 pages leave of the plant and become brown or black. Leaves may turn yellow and drop.To prevent this disease overhead irrigation, especially in the evening and increase air flow through the plants to speed drying of the foliage.The disease caused by Nematodes is known as Root-knot Nematode. The northern root-knot nematode, is a sedentary endoparasite, meaning that it infects host roots after hatching from eggs, stimulating the formation of a small gall

Phytochemicals colors and benefits:

570 words - 3 pages a decreased risk of heart disease. Tomatoes are one of the best sources of lycopene, especially when tomatoes are cooked. The heating process actually makes carotenoids more easily absorbed by the body. Orange and Yellow fruits and vegetables contain carotenoids, colorful plant pigments, some of which the body uses to create vitamin A. Carotenoids are best absorbed when eaten with fat. Alpha-carotene, beta-carotene, and beta-cryptoxanthin

Antifungal activity of botanicals on Neem die-back pathogen P. azadirachtae

591 words - 3 pages disease resulting in almost always 100% reduction in fruit yield. The annual loss due to this disease could be several million rupees. P. azadirachtae is a deuteromycetes fungus, which belongs to class coelomycetes. It has branched, septate, profuse and colorless mycelia which turns pale brown later. Conidia are produced in fruiting body called pycnidia. It produces two types of conidia in a cream to dark yellow coloured slimy cirrhi: alpha

Seed Germination

849 words - 3 pages grow, so the growth of the plants will be slowed down because of the lack of water. However if plants get too much water the can not get any air from the soil which is used in respiration. The soil becomes so damp that it encourages disease, causing organisms, which may affect the plant as well as rotting the roots. Lack of nitrogen in the may also cause the leaves to turn yellow and fall off. (

Lab report for chromatography,international baccalaureate programme

574 words - 2 pages CHROMATOGRAPHYTOPIC : 7.2RESEARCH QUESTION:What is chromatography?How many pigments are there in a plant?How the different pigments in a plant can be separated?APPARATUS : Please refer to the handoutMATERIAL : Please refer to the handoutMETHOD : Please refer to the handoutDATA COLLECTION: Coloured band Pigment front distance (± 0.05cm) Solvent front distance (± 0.05cm) Green 11.7 13.0 Yellow 12.5 13.0 DATA

Similar Essays

The Yellow Starthistle Plant Essay

653 words - 3 pages In California, the yellow starthistle invades 10 to 15 million acres of land (DiTomaso). This plant species is harmful to native plants and animals. Also, it has no beneficial purpose to the earth. Yellow starthistle is a problem in our world and it can be solved by extracting their roots from the ground and preventing the spread of their seeds (DiTomaso). The yellow starthistle, also known as Centaurea solstitialis, is a plant that grows

Effect Of Colours Of Plant Growth

1297 words - 6 pages by the equation, rather the relationship between growth in height and the time in days. The R2 value for blue, red and control variable were all in the 0.99 range. This indicated that the growth of the plants was steady and any possible errors have not influenced the data. However, the low R2 value for yellow and green, in this case, does not mean errors, rather accuracy as it supports the theory on the effects of colours on plant growth

Weedy Pest Or Crop Of The Future

1299 words - 5 pages other species of New World nutsedge by its persistent linear brown spiklets that have closely appressed overlapping scales. This perennial plant is self-incompatible. The stem of yellow nutsedge is triangularand has a light green-yellow color. Rhizomes that terminate in tubers are the main means of reproduction, although it does produce viable seed.It is interesting to note that the name Linnaeus chose for this sedge, esculentus, means edible in

Chromatography Essay

648 words - 3 pages for 30-40 minutes. Afterwards, take the paper out and immediately put a pencil mark at the top of the solvent front. Then compute the Rf values using the distance the pigment traveled in cm/ the distance the solvent traveled in cm. Record each value and compare the pigment.DATA: The table shows the Rf values for the plant leaf pigments.PIGMENT Rf (GIVEN VALUES) Rf (LAB VALUES)Carotene 1 (golden yellow) .96