. Fungoid and insect pests of the farm. Agricultural pests. IX] Butterflies and Moths 99 been thinned. It is very noticeable after thinning as gaps are made in the rows. The caterpillars may be found by hunting in the soil near freshly damaged plants. Later on in the season they attack the swollen roots of turnips and mangolds by scooping out large holes. In a similar manner potato tubers are attacked. The. Fig. 29. Caterpillar pupa and adults of a surface caterpillar moth. nibbled roots and potatoes usually rot. Com crops often suffer from attacks on their roots in mild winters. The grubs rem
. Fungoid and insect pests of the farm. Agricultural pests. IX] Butterflies and Moths 99 been thinned. It is very noticeable after thinning as gaps are made in the rows. The caterpillars may be found by hunting in the soil near freshly damaged plants. Later on in the season they attack the swollen roots of turnips and mangolds by scooping out large holes. In a similar manner potato tubers are attacked. The. Fig. 29. Caterpillar pupa and adults of a surface caterpillar moth. nibbled roots and potatoes usually rot. Com crops often suffer from attacks on their roots in mild winters. The grubs remain hidden vmder the surface or under leaves during the day and come out to feed at night. The moths giving rise to these usually fly at night and are attracted by lamps or fires. Their hind wings are lighter in colour than the front ones. The female has 7—2. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Petherbridge, Frederick Robert. Cambridge : University Press
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishercambr, bookyear1916
