Rain water can collect in this receptacle; this may perform the function of preventing sap-sucking insects such as aphids from climbing the stem.
32.
Gametocytes can then be ingested by another blood-sucking insect where they undergo sexual reproduction in the midgut of the insect to produce oocysts.
33.
The green-head ant is diurnal, active throughout the day, preying on arthropods and small insects or collecting sweet substances such as honeydew from sap-sucking insects.
34.
Wooly aphids ( Eriosomatinae ) and other sucking insects are often subtemperate climates precede and are an indicator of various plant infections, including powdery mildew.
35.
In this case, the target is the glassy-winged sharpshooter, a voracious sap-sucking insect that spreads the deadly Pierce's disease bacteria to plants as it feeds.
36.
Most leaf-sucking insects do not cause permanent damage to shade trees, he says, though they do make a mess on car finishes and other surfaces.
37.
Local pest control companies say they have received more calls than normal about the pesty blood-sucking insects that make life miserable for residents and their pets.
38.
These almost microscopic, pale yellow sap-sucking insects, related to aphids, feed on the roots and leaves of grapevines ( depending on the phylloxera genetic strain ).
39.
A systemic pesticide, imidacloprid, commonly used on sucking insects like aphids and fleas, is being tested by the Department of Agriculture for its effectiveness against the beetle.
40.
Blood-sucking insects, such as black flies and mosquitoes, are a plague to reindeer during the summer and can cause enough stress to inhibit feeding and calving behaviours.
