Set only clean plants, or dip them in resin wash or kerosene emulsion. In the field apply tobacco dust freely in the bud before the bloom begins to appear, or spray with kerosene emulsion.

Pineapple Scale (Diaspis Bromelife)

Circular, thin, pure white scales with yellow exuviae infesting leaves and fruit.


Kerosene emulsion and resin wash.

Red-Spider (Stigmaeus Floridanus)

Minute mites occurring in great number at the base of the leaf, where they induce rot.


Tobacco dust applied to bud.

Catalogue of Insects, continued.

Plum. Canker-Worm

See Apple.

Curculio (Conotrachelus Nenuphar)

Larva, a whitish grub, feeding in the fruit.


Arsenate of lead, six pounds to one hundred gallons of water; apply as soon as the calyx falls, and repeat two or three times at intervals of about ten days. Jarring the beetles on sheets very early in the morning, beginning when trees are in flower, and continuing from four to six weeks, is probably the most certain procedure. There are various styles of sheets or receptacles for catching the insects as they fall from the tree. Clean culture.

Flat-Headed Borer

See Apple.

Pear-Twig Beetle

See Pear.

Plum-Gouger (Coccotorus Prunicida)

A small larva, feeding upon the kernel of the plum. The beetle bores a round hole in the plum instead of making a crescent mark like the curculio.


Catch the beetles in a curculio-catcher.

San Jose Scale

See Apple.

European Fruit Scale (Lecanium Corni)

A large circular scale occurring on plum; occasionally very destructive.


Thorough spraying with kerosene emulsion, one part to five of water, in the winter. More dilute emulsion or tobacco extracts in midsummer, when the young insects are on the leaves and young shoots. Miscible oils when trees are dormant.


See Cherry

Tent Caterpillars

See Apple.


See Apple.

Poinsettia. Mealy-Bugs

See Citrus.

Pomegranate. Black Scale; Citrus Thbips;

Florida Wax Scale

See Citrus.

Oleander Scale

See Hedera.


See Citrus.


See Citrus.

Populus. Black Scale

See Citrus.

Cottonwood Leaf-Beetle (Lina Seripta)

A striped beetle feeding on the leaves and shoots of poplars and willows.



Oyster-Shell Scale

See Apple.

Poplar Borer (Cryptorhynchus Lapathi)

A whitish grub burrowing in the wood.


In nurseries, spray thoroughly about the middle of July with arsenate of lead to kill the parent beetles.

Potato. Colorado Potato-Beetle (Leptinotarsa Decemlineata)

Beetle and larva feed upon the leaves.