« previous next »

Author Question: Which method of biological weed control has shown the greatest promise to date? a. predator ... (Read 42 times)

karen

  • Hero Member
  • *****
  • Posts: 537
on: Jul 22, 2018
Which method of biological weed control has shown the greatest promise to date?
 
  a. predator beetles
  b. bacterial disease of Poa annua
 c. BT or Bacillius thuringiensis
  d. releasing large numbers of bats

Question 2

A number of essential steps in an IPM program ________.
 
  a. provide identification of pests and natural enemies
  b. determine the injury level or potential size of the pest population
 c. determine the action or threshold level at which some pest controlling methods must be employed
 d. evaluate the greatest success with control and plan for future action
  e. all of the above


momtoalll

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 22, 2018
Answer to Question 1

B

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Negative control of an inducible set of genes: function of the lac repressor in regulating the lac o Negative control of an inducible set of genes: function of the lac repressor in regulating the lac o
Subfields of biological anthropology Subfields of biological anthropology
Desmosomes and gap junctions, as shown in heart muscle. Desmosomes and gap junctions, as shown in heart muscle.
The bypass actuator opens the bypass valve to control boost pressure. The bypass actuator opens the bypass valve to control boost pressure.
Skin testing. Note the spot labeled H, which is the positive histamine control, and the spot labeled ... Skin testing. Note the spot labeled H, which is the positive histamine control, and the spot labeled ...
Rosalind Franklin, shown here on holiday, used X-ray diffraction to investigate the structure of DNA Rosalind Franklin, shown here on holiday, used X-ray diffraction to investigate the structure of DNA
Video: Chemical Synapse Animation

For a complete list of videos, visit our video library