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Illinois' ecology is in a land area of 56,400 square miles (146,000 km 2); the state is 385 miles (620 km) long and 218 miles (351 km) wide and is located between latitude: 36.9540° to 42.4951° N, and longitude: 87.3840° to 91.4244° W, [1] with primarily a humid continental climate.
However, white grubs (reaching 40–45 mm long when full grown) live in the soil and feed on plant roots, especially those of grasses and cereals, and are occasional pests in pastures, nurseries, gardens, and golf courses. An obvious indication of infestation is the presence of birds, such as crows, peeling back the grass to get to the grubs.
Illinois is predominantly covered with soil, hundreds of feet thick in many places. Much of this soil is called, appropriately, "Illite", and is the most common type of soil on the planet. The visible geology of the state is mainly Quaternary, with rocks buried deeply. The wealth of the state mainly arises from this abundance of soil and the ...
In late autumn and during winter, they retreat down from the top 5 cm of soil and burrow down between 50–200 mm into the soil. During this phase, the grubs undergo a colour change from grayish/white into a yellow/cream colour. Once they reach the appropriate depth, the grub empties its stomach and starts to form a smooth oval shaped cell.
Area (acres) Area (km 2) Estab-lished Bodies of water Image Remarks Adeline Jay Geo-Karis Illinois Beach State Park: Lake: 4,160 16.8 1948: Lake Michigan: Apple River Canyon State Park: Jo Daviess: 297 1.20 1932: Apple River: Argyle Lake State Park: McDonough: 1,700 6.9 1948: Argyle Lake: Beall Woods State Park: Wabash: 635 2.57 1966: Coffee Creek
Illinois has received 3.41 inches of rain in the first half of July, 1.6 inches more than in the entire month of June, and leading to higher soil moisture across the state. Levels at 4 ...
The Cache River area was used as a trading crossroads by Native Americans, and has several sites of archeological interest within its boundaries, including the Cypress Citadel [5] site just south of Cypress, Illinois. French voyageurs gave the river its modern name, calling it Cache, which means secret or hidden place. American settlers arrived ...
Gov. J.B. Pritzker's administration halted construction Monday of a temporary winter camp for migrants in Chicago while the state reviews the removal of soil contaminants at the former industrial ...