. Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . ng organicmatter. Fungi like this aresaid to be sapropliytes, orsaiJropliytic, a w^ord meaningliving on decaying plants, as a rule, do nodirect injury to other kindsof vegetable life. There are many kind;^ offungi which, instead of livingupon dead or decaying organicmatter, develop at the expenseof other living these are saidto be parasitic in their of these live within thebodies of animals, often kill-fig
. Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . ng organicmatter. Fungi like this aresaid to be sapropliytes, orsaiJropliytic, a w^ord meaningliving on decaying plants, as a rule, do nodirect injury to other kindsof vegetable life. There are many kind;^ offungi which, instead of livingupon dead or decaying organicmatter, develop at the expenseof other living these are saidto be parasitic in their of these live within thebodies of animals, often kill-fig. 2. chinch bugs affecteding their hosts, and others ^^ fungus. live within the tissues of the higher plants. A goodexample of the former is seen in the fungus which de-stroys chinch bugs, represented in Fig. 2. A numberof dead bugs are shown on a wheat stalk on the left,while a single bug, much magnified, covered with thefungus, is represented at the right. This fungus belongsto a genus of plants called by botanists Entomophthora. To illustrate the manner of development of the par-asitic fungi affecting higher plants, we may take the. 6 PUXGI AND FUXGICIDES downy mildew wnlcli causes the well-known rot of theIrish potato. It is now believed that this disease doesmuch less damage in America than has been commonlysupposed, the injury attributed to it being often due toother fungi, but it is sometimes destructive, and its life-history has been carefully studied. The first indication of the presence of the downymildew in the potato field usually is the appearance of
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectpathoge, bookyear1896
