Merlot thrives in cold soil, particularly ferrous clay. The vine tends to bud early which gives it some risk to cold frost and its thinner skin increases its susceptibility to the viticultural hazard of Botrytis bunch rot. If bad weather occurs during flowering, the Merlot vine is prone to develop coulure. The vine can also be susceptible to downy mildew (though it has better resistance to powdery mildew than other Bordeaux varieties) and to infection by leafhopper insect varieties.
Water stress is important to the vine with it thriving in well drained soil more so than at base of a slope. Pruning is a major component to the quality of the wine that is produced with some producing believing …show more content…
Why did I pick this topic?
As a South African citizen I have noticed that there has been a shortage of water lately in our country, I also know that the Jacaranda tree uses a whole lot of water and by studying whether predation is affected by temperature we can know the ideal conditions for the tree to use sufficient water because an increase in predation would mean a decrease in the growth of the tree therefore saving water leading to more water for surrounding plants and a sustainable amount of water for the humans to consume. History of the Jacranda
Jacaranda trees were first introduced to South Africa in 1880, they were imported from Argentina for decoration purposes and is native to the tropical and subtropical regions of South and Central America Mexico and The Caribbean, now the trees have invaded most parts of South Africa especially Pretoria. The main tree that we see is the Blue Jacaranda (Jacaranda mimosifolia). There are over 50 000 trees in South Africa right now …show more content…
A worldwide family of roughly 2,500 species, they are small, some with wing length of 1 mm. The maximum size is 6.5 mm. Most species are in the range of 2 to 3 mm.
Adult agromyzids can be recognized by the distinctive shape of the head. The upper part of the frons, above the frontal vitta is lightly sclerotized and lack bristle like structures on most living organisms, while the lower part of the frons and the dorsal area of the head tends to be much more heavily sclerotized and setaceous. Thus, the frontal vitta often forms a distinctive patch on the head, different in colour and texture from the rest of the head. The compound eyes are usually oval and fairly small, although in some species, they are larger and more circular. The Experiment
• Collect 20 large branches from a Jacaranda tree that are infested with the biocontrol agent (Leaf Mining Fly).
Divide the branches into 4 equal groups of 5.
• Put each group of 5 into different climates;
1st Group: Outside under direct