• Mucor Rot

  Infected tissue appears light brown, soft, and watery. The infection usually develops at wound sites, at the calyx end, or at the stem end of the fruit.

• White rot

  Fruit lesions become visible 4–6 weeks before harvest, and appear as small, circular, slightly sunken tan to brown spots, sometimes surrounded by a red halo on yellow-skinned fruit.

• Periodical cicada

  Adults are wedge-shaped, nearly black, with red eyes and red-orange wing veins. The clear wings are held tent-like over the body.

• White peach scale

  Adult female is creamy-white to reddish orange, and covered by a round waxy scale that is grayish to brownish white. Adult males are tiny yellow 2-winged insects, and nymphs are oval and white to orange.

• Replant disorders

  In general, trees suffering from replant disease show slow and uneven growth within the first three years of planting. Both specific and non-specific replant disorders are known.

• Eastern tent caterpillar

  The adult is reddish brown with two white, transverse-parallel bands. Masses of shiny black eggs are laid in a ring around twigs. Larvae have long silky hairs on their body and a yellow line on their back.

• Black cherry aphid

  Adults and nymphs are shiny black soft-bodied insects; adults may or may not have wings. Nymphs are smaller, but generally similar in appearance to the adults.

• Click beetles

  The click beetle is dark-colored its body is hard and elongated it has a characteristic pair of spurs and sometimes colorful markings on its thorax.

• Quince rust

  Attacks only the fruit of apple and pear. Symptoms begin as a purplish lesion, usually appearing on the calyx end of the fruit. As the disease progresses, the entire calyx end becomes blistered and deformed. Tube-like structures eventually form and produce powdery, bright orange spores.

• Fruittree leafroller

  The adult is red-brown with mottling. The translucent green caterpillar has a reddish to dark brown head and an amber to pale green thoracic shield edged with brown.

• Apple rust mite

  The vermiform adult has two pairs of legs at the front of its body. Brownish yellow in color, they are invisible to the naked eye, requiring a minimum magnification of 15X to be observed.

• Hawthorn dark bug

  The young adult is black with red wing markings, which disappear a few days after it metamorphoses into an adult.

• Silver leaf

  Silvering of the foliage is the characteristic symptom. At first, silvering may be associated with only one or two major branches, but eventually the entire tree becomes silvery in appearance. When infection is severe the leaves may curl upward.

• European earwig

  The European earwig is dark brown with an elongated body, equipped with pincer-like forceps at the rear of the abdomen. The short elytra do not entirely cover the abdomen.

• Snowy tree cricket

  Adult somewhat resembles a field cricket, but is pale green in color and has a longer, more slender body and smaller head. Antennae are much longer than the body; males have stiff veins in their flat wings.

• Redbanded leafroller

  The adult's forewings are grayish brown with a subtle dark red and brown oblique band. The larva is pale green with a yellow or green head.

• European corn borer

  Adult is a pale yellowish brown moth with irregular darker bands running in wavy lines across wings male is distinctly darker than the female.

• Flyspeck

  Sooty blotch and flyspeck are found together on the same fruit and affect only the epidermal layer of the fruit. Flyspeck colonies appear as distinct groupings of shiny, black fungal bodies on the surface of the fruit.

• Dry eye rot (blossom end rot)

  Symptoms begin at the calyx end of the fruit, causing a reddish discoloration at the site of infection. The rot is at first soft, but eventually dries out, turning tan to brown with a red border.

• Nectria twig blight

  Typically, small cankers can be found girdling the base of cluster buds that bore fruit the previous year. This leads to the wilting and dying of leaves and twigs of current season's growth.